Cesspool slow drain

Hello everyone!

I have a 75 year old cesspool that is draining slower and slower by the day. It is a cesspool, but it seems to have a secondary or overflow tank. The guys that have come to drain it were baffled by that.

When we bought the house 8 years ago, we had it emptied and jetted. It worked well until we had it emptied again 2 months ago. Within a month it had filled, so we had it jetted and cleaned out with peroxide. Now, three weeks later, it is full again and draining extremely slowly (about an inch every 6 hours.)

So I know buildup on the tank walls isn't the issue, since we had it jetted and cleaned with peroxide. It's not full of solid waste- almost entirely gray water, since we've been using the bathroom that feed to a different tank. What else could cause that kind of slowing?

(Just for the record- we are investigating septic systems. The conundrum is that our town is slowly expanding sewer service into new neighborhoods. Depending on when they get to ours, it may just be cheaper to keep pumping this one out until the sewers get here.)

sounds like you have a cesspool with a seepage pit, generally a seepage pit is installed because the cess pool is not draining

cesspool are not designed to be a permanent system, because the area around them becomes saturated and cant get rid of the water fat enough

so a seepage pit is installed to give the system relief. if your pit is saturated. game over.

time to dig it all out and install a septic tank and drain field or connect to city sewer

for relief. accidently, opps, how did that happen, break the wall, free willy