absorption trench

absorption trench

[əb′sȯrp·shən ‚trench]
(civil engineering)
A trench containing coarse aggregate about a distribution tile pipe through which septic-tank effluent may move beneath earth.

absorption trench

absorption trench
A trench containing coarse aggregate and a distribution tile pipe through which septic-tank effluent may flow, covered with earth.
References in periodicals archive ?
Tenders are invited for Digging of peripheral trench / water absorption trench around the following seven (7) locations in vinukonda range
Tenders are invited for Digging of water absorption trench (wat) without trimming, Involving earth work excavation of peripheral trench or water absorption trenches without trimming involving earth work excavation by the excavator with shovel 0.