Excavation to be 4m (13’) long x 4m (13’) wide x 2.85m (9’4”) from bottom on inlet pipe to base of hole.
All our septic tanks are delivered and placed in position. There must be clear access for our truck/machine to get within 6’ of the excavation.
Excavations must be dug to the correct dimensions. The base of the excavation should be dry and screened level with a layer of sand or grit. Unstable or soft ground should have 250-300 mm of compacted hardcore.