Submitted by spreisz on Mon, 11/27/2006 - 13:13.
A foundation drain is a 4" diameter continuous length of perforated piping that runs the circumference of the basement walls. It is a very important part of the waterproofing system that should surround your house. It lays on a bed of gravel collecting the ground water that tries to force its way into your basement and will reduce the chances that you will get a wet basement.
Waterproofing system.
