"Pete C." wrote in message
ter.com...

Yes, however if you're digging down to the lids you may as well have it
pumped anyway. How frequently it needs to be pumped is highly variable
based on what you let go into the system (kitchen disposer,
"flushables", etc.). A properly sized system that is only fed digestible
waste and sufficient water may never need to be pumped.

1. Yes, inspection after 6 years trouble-free use will
indicate how often the system should be pumped
(if you find an honest pumper, that is.)
2. Once you have located the four corners of the
hatch. map them exactly in relation to the nearest
window or corner of the house, so you can dig to
the hatch next time. Last time mine was pumped,
I fastened a yellow nylon rope to one handle and
extended it diagonally across the hatch and upwards
toward the surface. This way, any future digger is
likely to find the rope, and can follow it down.

--
Don Phillipson
Carlsbad Springs
(Ottawa, Canada)