What items should not be put down the drain?
The following items should not be put into the septic disposal system:
- Hair Combings
- Cleansers
- Cigarette Butts
- Coffee Grounds
- Condoms
- Dental Floss
- Disposable Diapers
- Fat, Grease, Oil
- Gauze Bandages
- Kitty Litter
- Paints
- Paper Towels
- Pesticides
- Photographic Solutions
- Sanitary Napkins
- Solvents
- Tampons
- Thinner
- Varnishes
- Waste Oils

Do not dispose of non-biodegradable materials with wastewater through drains and toilets as they displace storage volume of the septic tank and will upset the biological activity occurring in the tank.

Show All Answers

1. How do Onsite Wastewater Treatment Facilities (OSWTFs) work?
2. Why do Onsite Wastewater Treatment Facilities fail?
3. What items should not be put down the drain?
4. Do Onsite Wastewater Treatment Facilities (OSWTFs) cause health or water quality problems?
5. Can I apply for a permit to drill a well at the same time I apply for the Onsite Wastewater Treatment Facilities (OSWTF) permit?
6. My neighbor’s OSWTF is located on my property. What do I do?
7. What is an alternative system?
8. What are the different types of alternative systems allowed in Maricopa County?
9. Do I have to hire an engineer to design my system and draft my plans?
10. Can I make changes after I have submitted the NOID packet?
11. Can I make changes to an approved plan?
12. Can I request a partial construction inspection?
13. What type of rock should I use in the trenches, beds, or pits?
14. What are the requirements for installing a septic tank?
15. What are the requirements for installing the distribution box?
16. What are the requirements for installing the disposal field?
17. My system is failing. What do I do?
18. Can I use the existing septic system for my new house?
19. When can you release my building permit?