[Mamzelle]

I guess they should—

[spunkets]

Yes, when it went in. Genenally the plumber that put it in files that info. It should have all the details. The folks that you bought the place from should have info on when it was last pumped.

Decay leads to humic acid, It's a solid that has to be removed. That's humus, the stuff that makes black dirt black. The bugs are supposed to do that. In std septic systems, they don't quite get it all done. There's some living bugs left in the pumped solids, because it's a continuous system..