How Often Should a Septic Tank Be Pumped and Inspected?

Pumping and inspecting on schedule is the cheapest way to keep a septic system healthy. Skipping it is how solids end up in the seepage pits or leach lines, which is the expensive part to fix.

The baseline

• Inspect at least every three years. That is EPA's guidance for the average household system.
• Pump typically every three to five years. The right interval depends on the tank and the household.
• Yearly for mechanical systems. Systems with pumps, float switches or other mechanical parts generally need yearly inspections, and EPA recommends a service contract for them.

What changes the schedule

• More people in the house, or more laundry and showers.
• A smaller tank for the size of the house.
• A garbage disposal, which adds solids.
• Guests, short-term rentals or a new ADU.
• A history of problems, such as roots or a pit that is slow to drain.

What an inspection looks at

A proper inspection checks the liquid and sludge levels, the baffles and the inlet and outlet, then looks at the distribution box and the seepage pits or leach lines. Keep the reports and pumping tickets. Over a few visits, they show how fast your tank fills, which sets your real interval.

Why access matters every time

If the lids are buried, every visit starts with digging. Installing risers once, typically 18 to 24 inches at the tank, means every future pumping and inspection is quicker and costs less.

Habits that help

• Flush only human waste and toilet paper.
• Keep grease, oil, chemicals and paint out of the drains.
• Fix leaks and running toilets.
• Don't park or drive over the dispersal area.
• Keep roof drains and sump discharge away from it.

How we help

We pump, inspect and service septic systems across LA County, and we install and service ORCA Pod treatment, made by ORCA OWTS. Call (800) 606-3880 to put your system on a schedule.