Yes, but it is not recommended. If you use a garbage disposal then you must have your tank inspected more frequently.
You can request a copy of your As-Built drawing from your local health department. If they have no record of your system, a septic system designer can be employed to locate and draw one up for you and the county.
A family of 4 on a gravity fed drain field should have the tank inspected every 3 years. If the Septic Tank Pumping system is more complex and contains a submersible pump or Alternative Treatment Unit (ATU) the system should be inspected annually.
Plugged main line from the house to the tank. Septic tank full. Effluent filter plugged. Submersible pump not working. Drain field failing. It could be one or more of these problems all at the same time. Solution: Have a Septic professional inspect the system and determine if the tank needs pumping, the main line needs cleaned, filter needs cleaned or drain field is having a problem.
Risers allow the lids to be located at the surface. They are installed on the top of the septic tank, sealed down with a mastic to keep water from getting into the septic tank. Lids are then screwed down to allow easy maintenance on the system.
Usually, when you see bubble in the toilet, air is being pushed back out of the trap due to back pressure caused from flushing into a partially full line Solution: Have a Septic professional inspect the system and determine if the tank needs pumping, the main line needs cleaned, filter needs cleaned or drain field is having a problem.
Gurgling is caused when the line Is partially blocked. This is usually the result of a full septic tank but could also be caused by a failing drain field. Solution: Have an Ace Acme professional come out and inspect your system and determine if the tank needs pumping, the main line needs cleaned, filter needs cleaned or drain field is having a problem.
AceAcme is proactive not reactive when it comes to State Law. We have county by county rules and regulations to make sure that your septic services are done right the first time!
For more information on State and local laws, consult the below links:
Rules & Regulations of the State Board of Health On-site Sewage Systems Chapter 246-272A WAC
On-site Sewage System Management Plan for the 12 Puget Sound Counties
Water System Design Manual - As Builts
Additional Resources
http://www.doh.wa.gov/search.htm?query=246-272A