At my mountain cabin, there is a septic system. At the perimeter of the cabin, a 4" white drain pipe comes down to a cleanout with a plug, and is visible about 6" above the dirt line. The line continues on into the septic tank.
The area over the septic tank appears to have been filled in with a combination of type 2 and local soil. After many years, it is hard as concrete. I started to dig down to find the cap and do an inspection, but stopped after about an hour of picking. 7500' elevation x a 5 way bypass is a bad formula.
My BIL is coming between now and spring to do a lot of dirt work. I shall have him CAREFULLY scrape over the top of the tank, and with my metal detector, find the loop on top of the cap. I anticipate it is a relatively small tank.
QUESTION: Does the septic pumping guy have to go in through the cap, or can he go down through the cleanout? I figure it is best to pull the cap, and visually inspect, as well as pump more thoroughly, but just wondering since technology moves so fast, there may be a newer easier way of doing the same old dirty job.