An Unbiased View of land drains
The scale from the soakaway needs to be no less than 1m x 1m sq. x 1m deep below The underside with the incoming pipe. The stone infill really should encompass the pipe and complete roughly 100mm higher than it. An impervious layer must then be put on the stone including thick polythene, tarpaulin, or perhaps a mattress of concrete (A1 inside the d