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General Septic System Questions

1. What is a septic tank and how does it work?
A septic tank is an underground wastewater treatment system. Solids settle at the bottom (sludge), oils float to the top (scum), and the liquid (effluent) flows to a drain field for further treatment.

2. How often should a septic tank be pumped?
Every 3 to 5 years, depending on tank size, household size, and water usage.

3. What are the signs that my septic tank needs pumping?
Slow drains, gurgling pipes, sewage odors, wet spots in the yard, or backups in toilets and sinks.

4. How much does septic tank pumping cost?
Typically between $350–$600, depending on tank size and location.
– Yakima County is 35 cents a gallon, plus tax
– Kittitas County is 55 cents a gallon, plus tax
*Garbage in tank is a surcharge of 15 cents a gallon. Garbage is anything other than the 3 P’s (Poop, Pee, Toilet Paper).

5. What happens if I don’t pump my septic tank regularly?
Solids can overflow into the drain field, causing clogs, system failure, and expensive repairs.

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Maintenance & Best Practices

6. What can I flush or pour down the drain with a septic system?
Only human waste and toilet paper should go into a septic system. Avoid wipes, grease, chemicals, and medications.

7. Are septic tank additives necessary or helpful?
Generally not. Natural bacteria in the septic tank are sufficient. Septic additives can disrupt the system.

8. How can I maintain a healthy septic system?
Pump your septic regularly, conserve water, avoid harsh chemicals, and protect the septic drain field.

9. Can I use a garbage disposal with a septic tank?
Garbage disposals are not recommended when you have a septic tank since they add solids and increase the need for pumping.

10. How do I prevent septic system failure?
Regular maintenance, mindful water use, and avoiding harmful substances are key.

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Troubleshooting & Repairs

11. Why is my septic tank backing up or overflowing?
It may be full, clogged, or the drain field may be saturated. Call a professional immediately.

12. What causes septic odors in the house or yard?
A full tank, ventilation issues, or leaks in the system.

13. What should I do if my drain field is soggy or smells bad?
Stop using water and contact a septic service provider. It may indicate failure.

14. Can heavy rain affect my septic system?
Yes. It can saturate the drain field and cause backups.

15. How do I know if my septic system is failing?
Look for sewage backups, slow drains, wet or smelly yard areas, or unusually green grass over the drain field.

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Property & Legal Considerations

16. Do I need a permit to pump or repair my septic tank?
Pumping usually doesn’t require a permit, but repairs or replacements often do. Check your local regulations or contact us for more information.

17. How do I locate my septic tank and drain field?
Use as-built drawings, inspection ports, or access lids. A professional can help locate it.

18. Can I sell my house with a septic system that hasn’t been pumped recently?
Yes, but many buyers and lenders require a recent inspection or pumping.

19. Are there local regulations for septic system maintenance?
Yes. Many areas require regular inspections or pumping. Contact your local health department.

20. What records should I keep about my septic system?
Keep records of pumping dates, inspections, repairs, and permits.