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Do’s and Don’ts of Aerobic System Maintenance

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Although aerobic systems are more sophisticated than standard ones, they still need routine maintenance in order to function at their peak. Here are some do’s and don’ts for maintaining your aerobic system (tips on standard systems here).

DO hire a TCEQ licensed maintenance provider to service your system. All aerobic systems are required to be checked every 4 months per TCEQ regulations, even if your county doesn’t require a maintenance company to perform the service (there’s a lot more to servicing your system than just adding chlorine, not to mention the health risk of coming into contact with wastewater).

DON’T panic if your alarm turns on — it is usually not an emergency. Call your maintenance provider when your alarm sounds or light turns on and reduce non-essential water usage.

DO hire a maintenance provider that is certified by the manufacturer of your system, and who only replaces the proprietary parts of your system with the same proprietary parts — not with parts for another manufactured system.

DON’T wait several days to report alarm activation.

DO avoid spraying your irrigation sprinklers over the same area of the aerobic system’s distribution area, otherwise excessive wetness/saturation may occur.

DON’T turn the system off.

DO check your chlorinator once a week to once a month on average (depending on your water usage). See our video on unclogging your chlorinator.

DON’T store chlorine in water heater closets or by water heaters. Keep away from gas and electrical. Chlorine needs to be stored in a cool, dry, ventilated area.

DO use ant killer to kill ants if they start mounding by any part of the system.

DON’T use swimming pool chlorine tablets for tablet chlorinators. Only use calcium hypochlorite tablets that are designed for treating wastewater.

DO make sure all parts of the system are easily accessible at all times (do not build over any part, use landscaping that could grow over, etc).

DON’T allow plumbers, landscapers, irrigation companies, etc. to replace anything themselves, or handle any part of the system except adding chlorine and silencing the alarm. Repairs made by the homeowner or others generally voids the system’s warranty, and will make future repairs more costly.

DO be cautious of what enters the system. Items flushed down the commode or poured down the drains do not disappear; they must be treated by the system.

Aerobic systems are designed to treat domestic wastewater and toilet paper only. Things that can harm your system include:

  • excessive use of garbage disposal
  • fat, grease, and oil
  • too many cleaners
  • too much fabric softener
  • bleach
  • cigarette butts
  • diapers and wipes
  • feminine products
  • paper towels
  • condoms
  • Q-tips
  • paint, paint thinners, and varnishes
  • drain cleaners and automatic toilet cleaners
  • hair combings
  • food (fruit, fruit peels, fruit juices, cola, wine, vinegar, salad oil, sugars, coffee grounds)
  • dental floss
  • kitty litter
  • unused medicine
  • etc.

Items such as these can cause the cost of maintenance and tank cleanings to be more expensive.

DON’T allow alteration to any part of the system or spray head locations. Alteration puts the system out of compliance and can cause the property owner additional expense to bring it back into compliance.

DO pump your system when recommended by your maintenance provider.

Van Delden takes a sludge test each time your system is serviced. We normally recommend you to pump out all your tanks/compartments when the sludge level reaches approximately 50% or higher in the aerobic unit or if excessive sludge builds up in the pump tank. (The average household will need to have the system pumped every 2-5 years).

DON’T plant landscaping around the system or spray heads. Keep vegetation mowed or trimmed around the system and spray heads. (Spray can only be applied to vegetative surface.)

DO hire a pumping company that is familiar with your make and model of aerobic system and knows what needs to be done to the system when it is pumped in order to avoid causing damage to the system. Each make and model is different in what needs to be done when it is pumped.

DON’T treat the system as city sewer. Economy in the use of water helps prevent overloading the system. Leaky faucets, running commodes, etc. should be guarded against as well. Avoid doing all your laundry in the same day; surges of water entering the system may hydraulically overload the system and throw off the balance of bacteria.

If you’re thinking about installing an aerobic system on your property, consider downloading Living with an Aerobic Treatment Unit and Spray Field.

81 thoughts on “Do’s and Don’ts of Aerobic System Maintenance

  1. Our 1.5 acre lot new home in Magnolia, Texas, Montgomery county has an aerobic septic system. The home is 5 years old. I understand there should be three sprinklers. We have only two. We believe the former owner capped one of the sprinklers for whatever reason. However, one sprinkler is too close to the house, approx. 50 feet from back door. The other is a sufficent distance away. I want to move the sprinklers further from the house and add the third missing sprinkler. My concerns: Would the compressor pump be able to handle the extra distance of 1″ dia sch 40 pink pvc pipe? I anticipate adding approx. 150-175 linear feet. I understand I would need to contact a local septic system company to map the pipe lines in order to fall under county laws for septic systems. I plan on laying the lines myself using a trencher to save some money. Any advice would be warmly received. Thanks!

    • Mike,
      I’m all about saving money, but this is probably not the advice you were hoping for. Anytime a system is altered, a permit is required. Capping and/or moving spray heads is considered altering the design of the system. When the spray heads are moved, you need to ensure the spray area is covering the proper amount of square footage that is required for your home and that it meets all setback requirements. Moving the heads is required to be done by an individual who holds a TCEQ Installer II license. I recommend the spray heads be moved by a licensed ” TCEQ Installer II” only after a professional design is submitted to the county and you have an approved permit.

      That being said, sometimes a larger pump is required if you loose to much pressure to your spray heads. A larger pump will likely require a new control board and electrical supply to your system, which is usually a pretty expensive upgrade. Using 2″ pipe may save head pressure too. This could all be calculated by someone who is qualified to design aerobic systems.

      -Courtney Van Delden

  2. I am looking for an aerobic septic system maintenance company close to where I live in Concan, Texas. The one I am currently using is too far away. I cannot seem to find on the internet any listings of aerobic maintenance companies.
    Can you help?
    Thank you,

    • Maggie,
      My best suggestion is to call your county’s septic department and see if they have a list of local TCEQ Licensed Maintenance Providers. If you are searching the internet, you might also want to try searching for septic or aerobic installers since a lot of installers also provide maintenance. You may not be able to find a TCEQ Licensed Maintenance Provider close to you, but I bet you could find some in Del Rio or Kerrville that would be willing to go to Concan, but it may come at a higher price due to the travel distance. Best wishes!

  3. Besides the color code, is there a difference between a septic sprinkler and a lawn sprinkler? I had to replace a sprinkler (someone mowed over it too many times) and couldn’t find one locally.

    • They are pretty much the same if you are using a low angle nozzle. In Texas, the top is required to be purple to indicate the spray head is designated for wastewater. They are hard to find at hardware stores, so you could check with a local installer or maintenance provider to see if they sell spray heads or if they can give you the number to their supplier.

  4. Hello! Is there a way to temporarily prevent the sprinklers from coming on? My son’s team are using our back garden for baseball training once a week and I would prefer not to give them a “shower” during this time!. We have only been in the property for a short while hence the question.

    • I understand not wanting to get “showered”! This is why we install timers on all our aerobic systems – so that the system only sprays in the middle of the night. If your system sprays “on-demand” then either don’t use any water while they are there or turn the system off. We typically don’t recommend turning the system off though. If you are interested in installing a timer, contact your maintenance provider for prices. Best of luck to the team!

  5. Can you explain to me the importance of the sprinklers actually spraying, i.e., functioning correctly? This seems like a ridiculous question to me but my husband feels there is no importance to them actually spraying. All of our sprinklers are broken but the water still seeps/pools out of the pipes so he says that is fine and there is no reason to fix the heads. I can’t seem to find an actual explanation to show him why they need to spray vs just seep out of the pipe. Thanks.

    • In short, the spray heads need to spray out (vs. seeping/pooling out) because final treatment of the wastewater occurs through the distribution over the vegetation. Part of the system design is to spray over a certain amount of square footage to evenly distribute the wastewater without saturating the soils. Saturated soils will not treat the wastewater, which leads to environmental hazards and chances for illness to occur. I would highly recommend fixing the spray heads as soon as possible. Best wishes!

  6. We are having a pool built and are wanting to install a privacy fence. What is the acceptable distance between the underground tanks and the fence?

    • Had to say without knowing more about your system. I have seen some aerobic systems that actually have a green disk-looking device sticking up in the middle of one of the green lids, and its part of the system design. Has it always been this way or did it all of the sudden rise up? I’d suggest calling a local aerobic system provider if you are concerned.

  7. Can you set your timer to go off multiple times per day so the alarm won’t sound off every night? I have a wife and 3 daughters. Laundry piles up and showers are forever. Is there a special timer/ system I can buy through my provider to automatically shoot water out when needed? Please help!

    • Most systems with a timer are set to spray at night, but your provider may be able to install an override float. The override float is a third float in the pump tank that will override the timer whenever the tank gets too full. Usually, your alarm does come on at first, or at the same time, but then the system sprays out the water and then the alarm turns off. There may be other variations out there. Call your provider to see what he recommends. Best wishes!

    • Mike, I’m sorry for the delay in responding! We only service and install Clearstream aerobic systems, which do not have a round disk in the lids to pop up, so I’m not familiar with the system you have or what that disk is for. If you look at your system, see what brand it is and then I’d call around to find someone in your area more familiar with your systems brand.

  8. Our aerobic system makes a loud humming noise, is this normal? Also, we’re away from home several weeks at a time, do we leave it on or turn it off?

    • If your system has an aerator pump, then a humming noise is normal. Some aerators are louder than others. But, if the humming is louder than normal, that may be an indication that its working harder and may need to be replaced in the near future. Always leave all components of the system turned on. That aerator should run 24/7. Turning the power on and off can also have adverse effects on some aerators due to changes in air pressure. Hope that helps!

  9. I had a new aerobic system installed last week. Last night and all day today it has rained and the sprinklers have been running non stop. Is this normal or should I be worried? Also all the dirt on and around the tanks have eroded away and sunk about 12″ or more.

    • Is this a system we installed? If so, please call our office so we can get you taken care of. The sunken dirt around the tanks is normal settling – more dirt needs to be brought in to fill the depressed areas. It sounds like rainwater is getting into the system and being pumped out through the spray heads. Perhaps the lids need to be extended to prevent rainwater from entering the system. If we did not install it, I recommend calling the installer to see what they will offer to remedy both.

  10. Thank you for your speedy response. No your company did not install our unit. I live in McKinney, north of Dallas. I will call him today. Thank you for your help.

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  12. I have a Hoot 500S, AF low dose septic system that is 7 years old at Lake Brownwood. I am having all 3 tanks totally pumped this week for the first time. I live alone so my system is not overloaded. I am pumping because the alarm keeps going off plus the pump tank overflowed. The serviceman has pulled the pump, cleaned it, pumped the pump tank but I am trying to make sure all the basic maintenance is being taken care of. I have read a lot on the internet & my question is regarding the leach field: I cannot find a clean-out port on the field for flushing nor do I know of a way to check the pressure of the field. I have the engineers drawings but they do not show a cleanout port. How do I know if some of the laterals are stopped up by roots or whatever? I would love to get your opinion on this. Thanks!

    • I’m a little confused as to the distribution type of your system (where the water goes after it leaves the aerobic unit). In our area, if there are no spray heads to the aerobic system, then they usually have drip emitter piping. I would recommend calling your service provider or a local installer to locate/flush out the supply lines, which should be done from time to time on low-pressure dosing and drip systems. Often, these end caps/valves have to be dug up, so that may be why you cant see them visually.

  13. My husband does not like the sprinklers, he is afraid they are not good for the kids or dogs. Not to mention they spray in all different directions. He is wanting to put a cover on them. Do you have any suggestions on making this more kid or animal friendly?

    • If your system is being serviced/maintained properly then there should not be any danger to your kids or pets. That being said, I wouldn’t have my kids go run and play in the aerobic system sprinklers, but the system is designed to treat the effluent to the point where it is not a health hazard. The spray area is set by the design of the permit – sometimes the spray heads need to be adjusted – but I’d obtain a copy of the design to be sure it is spraying as designed/permitted. Putting a cover on them will prevent the spray from spraying out onto the vegetation. The final treatment occurs through absorption into the soil and vegetation, so you will be hindering that process if you put a cover over them. Id imagine the area under the cover would stay saturated and that could lead to a health hazard if the final treatment does not occur through the soil/vegetation. There are aerobic systems that do not spray onto the lawn, yet they have drip emitter piping in the ground. You may be able to modify your system (with a design/permit of course), but it will come at a cost. Spray distribution is much less expensive than a drip field. If you are interested in modifying your system, contact a local designer/installer for an estimate. After seeing the cost you might be happy to stay with the spray area.

  14. How do you manually turn on the sprinklers? Usually runs during the day, but we have not noticed lately. Routine has not changed. The red light and buzzer are not on, just wanting to check the sprinklers especially because we put new heads on. I know when tech comes for maintenance checkup, he does something at the box to make them come on. What does he do?

    • Each system is a little different on how to make the spray heads turn on manually, so I would suggest calling your maintenance provider.

  15. Is it bad for a family to live 100 ft from 6 sprinklers that you can smell that is sewage . I’m renting and have a infant my concern is the wind always comes over a hill right in front of my house the sprinkler system is right at my front door and through out the day all I smell is sewer I don’t take my baby outside. What can I do

    • I’m sorry to hear that! The spray from the aerobic system may smell musty sometimes, but it should not smell like sewage. Is this for the system at the house you are renting or a neighbors? Either way, it sounds like the system needs to be properly serviced. Chlorine alone will not make the smell go away. Usually, the first thing to check when the system smells is the oxygen in the system, but there could be other reasons as well. I would approach the system owner to have the system checked first, but if nothing is resolved and you are still concerned, you could report it to the local permitting authority (usually the county or city). I hope the situation improves!!

  16. I have a system with sprinklers that have a head that pop up when the sprinklers are on yet they didn’t put the body deep enough it sticks out of the ground making it difficult to mow because the grsss sometimes grows higher then the sprinkler can they be put lower in the ground?

    • Kenneth,

      Yes sprinklers can be lowered. If there is soil under the sprinkler head, it can be dug out and lowered usually with just a shovel. If there is rock under the sprinkler head, it way require more than a shovel to dig the spray head deeper.

  17. I haven’t heard from you about my sprinklers being buried deeper so the bodies sprinklers wouldnt be exposed and only the popup being exposed when in use can that be done?

  18. We recently bought a house with an aerobic septic system. The furthest sprinkler has standing water & is “swampy” for about 10′ in all directions. I’m gathering this probably isn’t normal? (Thanks for a very useful site, by the way!)

    • I’m glad you find this site helpful! To answer your question: No, this is not normal. It sounds like the spray head need to be replaced. Is the spray head down-hill from the system? Sometimes you can get a siphoning effect from this, but in most cases the spray head just needs to be replaced.

    • The fact that a spray head stick up a few inches is no a problem, maybe other than aesthetics. If you live in an area when it freezes, it may be more susceptible to freezing/cracking. You may have to be more careful when mowing too. But as far as functionality, this has not proven to be an issue for our customers.

  19. We just bought a house with an aerobic system and since it was “as is” we knew we would have to do work. When the cover to the system was taken off, however, it was corroded and the pump circuit was tripped. Also, the chlorine didn’t look as if it had been used by the system (still a lot in it). The red light is on, but I’m wondering if that could be because the circuit was tripped from corrosion, or if the light means the system is backed up. We are having someone come out this week, but if it’s just the control panel needing replaced, my husband can easily handle this and save us some money. Would a corroded panel cause the red light and pump circuit to trip, and excess chlorine?

    • Unfortunately, there are so many hypotheticals in this scenario, it would be impossible to tell you exactly what is wrong. However, excess chlorine is probably not related to the control panel (unless the control panel controls the chlorine levels, but I’ve never seen any that function that way). The red light can mean 100 different things: just like when your “check engine” light comes on your car – it could mean MANY different things. Your issues may be related to each other, or you might have a several different issues that need to be addressed. I would contact a local, experienced maintenance provider to properly diagnose and repair. If replacing the control panel is easy for your husband, you can try that, but if there are other underlying issues, then you’ll still need to get it properly diagnosed and repaired. Also, if there is something going on with the pump/wiring, you don’t want it to cause a new control panel to go bad prematurely.

  20. Within the past 1-2 weeks my system started spraying 1-2x daily, during the day. Previously I rarely noticed spraying, I think because it was at night. I can’t tell if it’s on a timer that somehow adjusted. Is daily spraying normal? (Not much rain over the past few weeks).

    • It sounds like it may have to do with the timer or photocell. It will spray as often as it needs to, depending on how much water you use. Also, be sure you don’t have any running toilets, dripping faucets, etc.

  21. first thanks for having all this info on your site as well as doing some Q&A. i live in orange county, TX and have a clear stream 500n with drip lines 2 zones. starting to have some problems with roots getting into the drip and connectors braking at the headers wanting to go to spray heads. have contacted my county health department about this and acquired the stamped drawing of the original design. was told i would be in violation but they couldn’t tell me why or what law prohibits this just to get with the professional sanitarian that stamped the drawing. the area the spray heads would be in are 100’+ away from my water well and 13′ from property line. (same area the drip is located). just seeing if you know this would be in violation?

    • Usually, drip lines are installed as a last resort, so my first thought is that there must be a reason that spray heads were not installed to begin with. There are other regulations regarding to spray area locations (i.e. making spray heads out of violation), so I would agree that you need to contact a septic designer (Registered Sanitarian or Engineer). If you contact the designer that designed your drip system, he may be able to tell you why it was designed to have drip instead of spray. If you cant get a good answer, I’d contact other septic designers and provide them with a copy of the drawing you got from the county and see if they can help. Good luck!

  22. This blog is awesome, learning so much. We are looking to purchase a home with land so we can have our horses with us. What is the normal spray radius of the sprinklers and how far do we need to keep our equine friends from the area that in sprayed?

  23. My pretreatment access dome or lid does not seem to close securely. …obviously rainwater can trickle in thru there….should it be sealed or locked down?

    • Obviously, you want to keep rainwater from entering the system, but a little may enter with heavy rains. If you have a lid that can be screwed on, that should be fine. You could extend the riser higher to prevent surface water from entering the system. Typically, sealing the lids will make future maintenance harder. There are so many lid/riser types its hard to give you a solid answer because I don’t know your specifics.

  24. I recently purchased a home in Harris county texas with a clearstream aerobic system that was already installed. I would like to know who I need to contact to get a copy of the septic system layout. We recently had some heavy rains and I have water backing up a 3″ pipe that is in my yard about 10 feet from my kitchen sink. It seems to especially overflow when running our garage disposal. We have only been in the house about 20 days and want to prevent this from becoming a catastrophe. Thanks for the help and all the advice

    • Typically in Texas, aerobic systems are permitted through the county so you can usually obtain a copy from them. Or, you could try calling the installer if you know who that was. Is you alarm on for the system? Did you have an inspection on the aerobic system when you were in your option period?

    • Per Texas regulations set by TCEQ, there is no separation distance between the spray head/area and foundations, however, each local entity can be stricter. You really need to check with the local permitting authority as it may vary.

  25. Is it necessary to add anything periodically to my aerobic system? I have seen an additive called Bio-Clean, but I cannot find it anywhere locally. They advertise the benefit is adding bacteria to the system to break down more solids, thus having to pump less often. What are your thoughts? Thanks in advance for your feedback.

    • No, you do not need to add anything to your aerobic system, and doing so could actually be bad for the system. There is no product that can magically break down the solids in the tank. Just by using the system (and not abusing it), there is natural bacteria in the tank. I don’t know of any 3rd party entity that recommend adding bacteria, unless its self acclaimed or possibly a company trying to make an extra buck off of service. That being said, there can be exceptions to the rule, but it doesn’t sound like you need it.

  26. My annual maintenance contract is up for renewal. Is there a process for me to get certified to DIY my own maintenance and reporting? Not looking to contract out, but I’ve watched the guys perform the service….it ain’t rocket science. I’m in Montgomery County, north of Houston. I just hate paying for things that I can do.

    • TCEQ sets Texas state minimum standards, but each county can be more strict. Some counties allow homeowners to do the service themselves, some don’t. Some counties have DIY certifications, but not many do. While it may seem like service is easy, there is a lot of knowledge that is needed behind it to do a good job. Besides fully understanding how the system works and how each part works in its own way for system operation, it requires a lot of electrical knowledge, diagnosing experience, and health risks since you are dealing with raw sewage (it is definitely recommended to get the recommended vaccines), and having the necessary tools and parts on hand for maintenance and repairs. There’s much more than just checking the chlorine and making sure there’s no overflow…although that’s all that some service providers do…so it may seem easy if that’s the kind of service you’ve been receiving. Our company prides ourselves in doing the most thorough service with well qualified technicians (which then go through a lot of training)…which believe it or not, is VERY difficult to find even at the highest pay grade in the industry. Its not rocket science, but there’s a lot more to it than most people think. If you really want to DIY your service, check with your county septic department for local rules and classes.

  27. I’m trying to help my elderly neighbor troubleshoot why his aerobic system buzzer will not shutoff even though his sprinklers spray. I looked in his pump tank and noticed the gray float sitting below the top of pump (more than half the pump can be seen). I think this gray float has fallen down and is snagged on the pump. I was able to lift it only an inch with a pvc pipe with a hook then sprinklers went off. So to me this is the “on” float and there is a yellow float which I think is the low level float which is one foot up from the gray float. It appears both floats we’re only attached with tape. So basically only about 2 feet of the tank is being used. Someone told him your aerator is going out, but there’s no smell. I think his on float has fallen. What do you think?

    • See my question above. Thank you. Great website. I use to be a TCEQ OSSF inspector over 20 years ago. But I’ve forgotten a lot of stuff.

    • A fallen “on” float likely would not cause an alarm (but it may cause the pump to continuously run causing it to burn up), unless this float happens to be the high water alarm float which may be staying active for some reason. Either way, the floats should be secure in the tank. Once the floats are secure, see if that takes care of the alarm. If not, then you might have an aerator issue also.

  28. Hi, I am not very familiar with these systems and I have a couple of questions that are of concern to me. My neighbor has one of these systems and almost every day around 3-4pm…about the time I am bringing my son home from school, his system starts spraying. The issue I am concerned about is, that he doesn’t use any chlorine in the system and the smell that comes from the spraying is absolutely awful. You really can’t stay outside without getting nauseated. Sometimes I open the windows to let fresh air in but I will have to close them when it comes on. I have even had guests over when this happens on the weekends and they have told me that it does not seem safe. Should this be a health concern? I am mainly concerned that when the wind is blowing, that fecal matter and whatever else is in the water being sprayed, is coming onto my property and is also in the air we are breathing. I thought it was required to use the chlorine to keep it from being a health concern. If so, who should I contact about this matter. Thank you in advance for your time.

    • No aerobic system should have a sewage-type odor. This is usually an indication of a lack of treatment of the wastewater, so I’d be concerned too. There are many reasons that could cause this. Chlorine will help aid in disinfection but will not get rid of the odor, there is probably a lack of aeration or something causing a lack of treatment. Have you tried talking to your neighbor? As a last resort, you could report it to the County or local health department, but I would only do that if your neighbor is not being cooperative in resolving the issue.

  29. I purchased a home in Montgomery county and it has a Clearstream system which I am completely unfamiliar with. Which tank do I add the chlorine to? The fist, second or both? How much do I add? Also, is there some kind of cover that I can buy to go over the aerator to quiet it down?

    • You really need to have a maintenance provider come look at your system and tell you where your chlorinator is. Some Clearstream systems have the chlorinator built in, some aren’t, and depending on the age/model of the system, the chlorinator may be inside the pump tank, between the aerobic and pump tank, or even installed directly into the lid. There’s so many ways to set them up, that I can’t tell you without seeing your system.

  30. i have lived in magnolia tx for 7 months and the neighbors aerobatic system has saturated my back yard 2 times a few days ago i was up to my angles in their mess what can i do about this we all live on 1/3 acre lot i should not need to deal with their septic issues yes i have tried to talk to him he waved his hand in my face and walked away. what do i do now?

    • You can always contact the local septic department to file a complaint (usually the County) – they will investigate if there is any health hazard/public nuisance and address with the owner if they find that its needed.

  31. Hello,
    We are thinking to buy some land to build a house it requires an aerobic septic system the problem is the Spray some of it would be on a hill and going uphill is that allowed

    • It depends on local regulations. The spray piping is pressurized so it can spray at a higher elevation than the tanks. You may be limited as to how much slope there can be.

  32. How many hours should an aerobic system sprinklers be spraying for 2 people living in the home? We just moved in and the sprinklers spray from 1130pm – 6am! Thanks in advance!

    • It will depend on the levels that your floats are set at. However, that sure seems like a very lengthy amount of time. Do you have any dripping faucets or running commodes that may be putting extra water into the system?

  33. Friends called me to replace a sprinkler head on their aerobic system, said it was broken, too much standing water. What I found upon arrival was the tanks are at the top of a hill, and the heads (esp. one in particular) are lower than the tank, one being situated at least 4 feet lower than the outlet of the pump. I tried to explain they need to situate the sprinkler head at a higher grade, approximately the same level as the pump outlet and keep the discharge line level by that method, otherwise, in my opinion, the water left in the 1″ line will simply drain down to the lower sprinkler head following each discharge They don’t want to agree, but I know of no other way, because I doubt there are heads that seal after pump discharge, but they feel the head being replaced should stop the water from draining out. Well, water has been known to run downhill, so is there any other solution? Thx.

    • The spray heads usually have internal seals that do go bad so replacement may be the first step. Also, there are sometimes gaskets that can be inserted around the internal filter of the spray head to prevent water from draining out. Usually the supplier will get a pack of gaskets with the case of spray heads but these are not typically inserted unless specifically requested to be inserted. There are many brands of spray heads so there may be variations of these gaskets and seals. You may be able to call your local supplier and see if they can get you a new spray head with an extra gasket and possibly and extra seal. You may want to give that a try before raising the spray head elevation. If there is excessive water siphoning from of the pump tank and out of the spray head, you may also want to then try adding an anti-siphon hole on the spray line inside of the tank to break the vacuum and to prevent the tank from completely draining once the pump turns off.

    • It depends on your local regulations. In Texas, there are no separation distances between foundations and the edge of the spray area. Check your local rules as it may vary by local jurisdiction.

  34. We have a small compose area in the back yard that has rich soil in it. About 2 months ago I noticed that the aerobic septic sprinkler in the back turned itself and was watering the compose pile! I have no idea how many time it had done that as I usually don’t look back there. Is it safe to use the soil from that compose pile for my vegetable garden this year?

    • We are not sure if harmful bacteria in soil affects vegetables. You may want to check with a gardening expert.

  35. I have a Clearstream 600n aerobic and liquid overflowing into my pump compartment through 4″ pvc has a removable pvc case. Is there supposed to be a filter in there or is this for chlorine pucks? I add liquid bleach outside of my hatch compartments in a separate 4″ pipe that gets sucked in by pump recirculation little at a time. And where I add chlorine bleach has a tee connection with one end aubmerged on bottom and the other end above liquid level closer to the lid. Should both be submerged or is this set up to be part of eduction process?

    • It sounds like an old tablet chlorinator. If so, you can leave the old chlorine tube out, it is no longer necessary. If the liquid chlorinator is using chlorine at a moderate level in comparison to the amount of water being introduced into the system, then it is most likely working as designed. Depending on the model, it relies on a Venturi set up which would require it to have access to atmospheric pressure, i.e., above the water level. Hope this helps.

  36. I just had my system pumped. When they left, I looked into the two exposed tanks and saw the water was very low in both of them. Its now been 8 days since the system was pumped and the water level in the farthest from the house tank is still the same level but the one closest to the house is getting pretty full and I don’t see any water dripping into the rear tank like I used to. The sprinklers have not kicked on since the tanks were pumped.

    • Is this an aerobic system? If so, the last tank with the pump in it will keep the level lower than the other tanks when it sprays onto the yard. Depending on how much water your family uses, its possible that you haven’t used enough water for the tanks to fill enough to spray out. Or, perhaps you just haven’t seen the spray heads go off, or maybe the system is on a timer. Is the alarm on? Is the power to the system turned on?

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