I
Standard old school fair around here....folks have been shitting in wood septic tanks for a very long time, and Redwood makes a particularity good one...Think of all the old Redwood water tanks that have been in service for eons....I live in an old shotgun loggers cabin that was built around the turn of the century and the current septic was installed in the 60's. If you keep it functioning, dont allow it to dry up, and dont abuse then they can go a very long time...
That's amazing