43" to bottom of inlet gasket
41" to bottom of outlet gasket
4" PVC couplings cast into walls for inlet and outlet
4,000 PSI design mix--air entrained rebar enforced.
Risers optional

Approved by New Mexico, Colorado and Federal Government Agencies.

Note: Septic tanks with slab lids are not designed to be buried with more than 2' of cover over the tank.

Excavation dimensions: 9' wide, 13' length, 6-12" of cover over the top of the tank.

Set the tank on 12" of clean fill dirt containing no rocks. Fill dirt needs to be screeded level, firm not compacted. Backfill with clean fill dirt containing no rocks.