Locating & Digging

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Lilly’s Septic Tank Pumping Service

King County Septic System Home Sale Inspection Experts

(425) 432-3084 * (253) 639-3606 * (360) 825-4809


Lilly’s Septic Service Experts can Locate and Uncover your septic tank lids if you are unable to do so yourself.

The following pictures and drawings will help you determine how your septic tank lids are configured.

(Do not hesitate to call for assistance, if you have questions)

The Septic Tank is generally located approximately 5 ft off the house in line with the lowest bathroom or Kitchen

With 20 Years of experience Locating and Digging Septic Tank lids it is as if Owner
Darren McCullough has X-Ray Vision of the exact lid location!


1975 and earlier (Single Compartment)

(This tank will have one main lid and two smaller baffle lids on both ends of the tank as shown in the diagram below)

1975 – 1980 to Present (Two Compartment)

(This tank can have 2 main 24″ lids or 2 main lids and 2 small Baffle lids at both ends of tank directly above the inlet and outlet baffle)

You will be looking for 2 lids like these if there are risers on the tank, if the tank is not risered, you will find 2 concrete lids like the picture above ~ Riser lids can be below the surface which will require locating and digging the riser lid as well ~

1990 to Present (Two Compartment with Pump Tank)

(installed with a Pressure Distribution System – This tank will have only one main lid in the center of the tank)

Give us a call today

(425) 432-3084 * (253) 253-3606 * (360) 825-4809