The leaching field is a network of drainage pipes that are sandwiched between crushed stone and covered by topsoil. If needed, graywater can be pumped to the leaching field from a third chamber.

Plastic chambers and tanks made of high density polyethylene and polypropylene now account for about 50 percent of the $1.2 billion septic leach field and tank business.

While the majority of parts consist of almost entirely recycled material — leach-field chambers are nearly 100 percent recycled material and tanks about 80 percent — the caps are made of ...

Old Saybrook, Connecticut-based Infiltrator Water was founded in 1987 to manufacture plastic leach field chambers and systems, septic tanks and accessories for use in residential on-site ...

Its product portfolio includes single, double, and triple wall corrugated polypropylene and polyethylene pipes as well as plastic leach field chambers and systems, EzFlow synthetic aggregate ...