How to Build a French Drain
Time Required: Over 1 day
A French drain collects runoff water from your property and channels it to an outlet to help prevent pooling.
- Dig a trench from the area of your yard in need of runoff water relief to an outlet. When picking an outlet, look for retention ponds or other bodies of water, or tap into existing drainage. You can even divert the water curbside if that's easiest.
- Depending on the size of your trench, you can handle this step either using shovels or rent a trencher from The Home Depot.
Tip: Always check for underground utility lines before digging.
- Fill the trench with topsoil and compact to completely cover the entire structure.
Tip: When filling the area around the inlet grate, cover the grate to prevent any stones or soil from falling in.
- EZ-Drain offers an alternative to the process of building traditional French drains. The product consists of corrugated slotted pipe surrounded by polystyrene aggregate, wrapped in filter fabric.
- If you choose to use EZ-Drain instead of manually building a French drain, skip the filter fabric and crushed stones steps listed above and just drop the product into the trench and cover.