Exterior French Drain A French drain is often a technique of buried perforated pipes that redirects groundwater from the house.  If the waterproof basement partitions are made from concrete block, drill 1-in. holes in Each individual block Main and into Every single mortar joint (Figure A). This allows the water https://basement-waterproofing-yo32198.glifeblog.com/34348765/not-known-facts-about-basement-waterproofing-york-pa