If you’re installing a French drain around your foundation to prevent basement ... “For maximum effectiveness, use 4-inch perforated PVC pipe,” says Lamprey. PVC lasts longer, and if you ...

Many builders and laborers put the perforated drain pipe upside down ... is extended to daylight beyond the foundation, you can transition to solid pipe. Slope this pipe 1/4 inch per foot to ...

A French drain is a perforated pipe installed in a trench to collect ... An interior drain gets installed along the interior of the foundation walls of the basement or crawl space.

If these flooded spots are close to your home’s foundation ... of the pipe, usually in a place where water naturally pools or floods. Water also flows into a French drain pipe along its length ...

In contrast, a French drain installation is below ground as a perimeter drain around the basement or entire foundation. It uses a perforated pipe surrounded by filter fabric and gravel to capture ...