Depending on the amount of water that needs draining and where there is a flooding issue, French drains can be very big or very small. The Frensch drain installation involves digging a trench for discrete and efficient surface water or flood plain drainage. Let’s take a look at some more important information about the installation process.
It would help if you had a perforated plastic drainpipe, an aggregate, and a water-permeable non-woven landscape fabric to install a French drain. The size of your perforated drain pipe will depend on the size of the area which needs the system installed.
Dig a trench on a natural downhill slope or create your own by digging at a 1% gradient. The canal should be wide enough to fit the drain pipe with a surrounding aggregate and layer of the membrane. Lay the water-permeable landscape fabric at the bottom of the trench and extend upwards on either side. Then lay the perforated pipe with holes face down for quicker drainage. Shovel more aggregate on top of the tube, leaving at least 10cm between the gravel and the top of the trench.
These were some of the important things to know about installation. If you need help in this process, it’s best to contact a professional.