Spoiler: most of the time there are no clear signs your septic tank requires maintenance. You’ll typically see the signs below when your tank is overdue for maintenance. They include:
- Surfacing liquids over the top of the tank or over the Drainfield area.
- Backup/overflow out of a cleanout (PVC pipe between the house and the tank).*
- Backup in the house.*
*Could be plumbing related.
We and the TCEQ recommend pumping on the following schedules in order to avoid messy, expensive issues.

Still not sure if your tank needs to be cleaned? If it’s been 3-5 years since your last maintenance, now is usually the time. At a minimum, we advise getting it checked to make sure everything is running as it should. We are happy to help!
For 86+ years, Van Delden Wastewater Systems has withstood the test of time as the leading Wastewater System company, providing San Antonio, Boerne, and the surrounding Texas Hill Country with services you can count on now and in the future.
Call us for any of your wastewater systems needs and let our professionals help you with your septic installation and maintenance requirements
Customer Reviews
Peter was personable, professional and thorough. Highly recommend Van Delden. You might be able to find a cheaper company but not better!
On time. 100% professional, knowledgeable, and courteous. Very helpful and straightforward. That is the bar all businesses should strive for.
It has been a pleasure working with your company. Not only did y’all communicate very well but your workers were always polite! Thank you!
“I thank Van Delden for such prompt service. Honest people are hard to come by these days. I will certainly recommend Van Delden to anyone! Jesse is an upstanding young man and very nice to talk to. I thank everyone at Van Delden for taking such good care of me.”
This is just a note to thank you for explaining the problem with my system. You didn’t have to be so kind and I appreciate your good business ethics and time spent. In the future you will have mine in return!