I am attempting to replace the lid of my basement septic-sump -
the old lid was apparently a home-made job - made of metal -
and after 25 years or so - a failing rusty rotten mess.
The sump pit is the usual "plastic" 18 inch diam. ~ 2 ft deep
in good shape.
We don't have a basement bathroom, so this sump handles
1. laundry water
2. water softener flush water
3. furnace condensate, in winter
The foundation drainage sump pit is about 10 feet away.
The $ 75. gas-tight lids look OK - but would involve some
plumbing changes to get the holes to line-up. The modern
thinking is to seal these to prevent radon gas infiltration -
but I don't see how the radon gets into the plastic sump pit ?
I could imagine radon leaking around the pit .. between the pit and
the concrete floor - the lid doesn't seal this ...
... just thinking about making my own home-made lid -
plastic barrel bottom or something ?
Any thoughts or advice ?
John T.