ATL by Infiltrator
Advanced Treatment Leachfield

ATL by Infiltrator is passive advanced treatment leachfield system designed as an environmentally friendly alternative to traditional stone and pipe drainfields. The ATL system is a sand-lined treatment and dispersal leachfield system consisting of 6 components. Upon entering the system, septic tank effluent progresses through each component listed below.

• 4-inch-diameter pipe

• Large-diameter synthetic aggregate;

• Fine geotextile;

• Small-diameter synthetic aggregate;

• Coarse geotextile; and

• 6-inch-thick system sand


Upon exiting the ATL conduit, the treated effluent enters the underlying native soil.

No moving parts.

No venting and sand cover requirements.

Quick and easy to install. 

View the ATL by Infiltrator installation video