Precast Concrete Combination Tanks

This a combination Septic and Pump Tank compartment system that ranges from a combination holding capacity of 1000 to 1600 gallons

All combo tanks feature 4" Cast-a-Seal boot type connectors at inlets and outlets to provide a water tight seal.
Larger diameter connectors available on request. Pump chambers come with up to 2' of 30" Extension.

COMBINATION TANKS	PDF spec sheet
1250/350 Gallon Three Compartment Combo Dimensions: Inlet 49.5" Outlet 46.5" Height 59" Width 67" Length 156" |  1600 Gallon three compartment tank configured for use as a 1250 gallon two compartment septic tank with a 350 gallon pump chamber.  6+ Ton
1500 Gallon Two or Three Compartment Combo Dimensions: Inlet 49.5" Outlet 46.5" Height 59" Width 67" Length 151" |  1500 Gallon Two Compartment tank used as a 1000 gallon single septic with a 500 gallon pump chamber, or 1500 Gallon Three Compartment 1000 gallon split into two 500 gallon septic compartments with a 500 gallon pump chamber.  6 Ton	2c      3c
1000 Gallon Two Compartment Combo Dimensions: Inlet 49.5" Outlet 46.5" Height 59" Width 67" Length 102" |  1000 Gallon compartment tank configured for use as a 500 gallon septic chamber with a 500 gallon pump chamber. 4 Ton

We do not warranty any standard tank lid that has more then 4' of cover or extension on top, you must order the thickened lid for tanks buried to these depths.