Drainage Under Concrete Slab
Drainage Under Concrete Slab . The clayey soil (under the sand) must fall away from the house. While installing a bathroom in my basement my boyfriend tore out the concrete floor and ran pvc drainage pipe into the existing cast iron drainage pipe. plumbing How many vents are required for drains under a slab and what from diy.stackexchange.com Hose down the pipe and auger cable. Be laid straight and with an even gradient (see figure 1) be separated from the building foundation by at least 25 mm. Slope the clayey soil under concrete slabs away from your house.