French drains are a type of drain which was traditionally used for irrigation in the southern United States. The French drain is constructed of earth and is dug at the ground level, usually on the property boundary line, and is sloped to a lower footwall or deck. A French drain or weeping tile or trench is a channel filled with earth or rock or consisting of a perforated channel that diverts surface water away from a given area and directs it elsewhere. This type of drain can be constructed for a variety of purposes, such as to prevent the flooding of a small stream, prevent water from overflowing from a rooftop, or to collect rainwater running off the property. They can be constructed by hand or by machine, depending upon local conditions and the desires of the property owner. French drains are commonly used as irrigation systems and as catch basins for septic tanks.
Drain piping is typically copper, but other metals such as iron and steel have also been used. Pipes are placed in the ground according to the ground’s drainage pattern and directed away from the foundation. For French drains to serve their purpose, the soil must be cleared. If not, foundation walls will need to be built to divert the water away from the house. As a rule, French drains are installed within two to three feet of the foundation wall.
Digging a French drain requires precise planning and excavation equipment. Before French drain construction, it is important to identify the main stem and insert the drain material down the stem. Once this is done, the French drain will need to be dug around the perforation. Depending upon the location of the drain, the hole may need to be dug a few inches deeper than the depth of the gravel. The gravel will need to be poured around the perforation and then the French drain will need to be plugged or blocked.
Once the gravel has been inserted and the French drain has been dug, the French drain will need to be leveled and plumbed. This process will also allow a plumber to properly install the French drains. Water will enter the landscape fabric along the perforations and drain to the surface. To prevent future water problems, the landscape fabric should be laid in a way that does not channel the water into the drainage system.
Plumbing the French drains involves making sure the French drain pipe is properly installed, properly connected to the drainage system and is perpendicular to the slope. Once the French drain pipe is installed correctly, the contractor will need to level the area where the drain is to be situated. The contractor will make a series of small holes in the ground where the French drain pipe will be placed. A series of small holes will need to be drilled into the soil, just deep enough to allow a flexible drain pipe to pass through. After the holes are drilled, soil excavated and leveled, the contractor will need to place the drain pipe inside the holes and secure it with concrete.
There are two different ways that French can be used to manage water away from foundations. One method involves excavating a trench around the house and installing French drains inside it. Another method calls for digging a trench outside the house, installing French drains inside it and then putting a French drain pan outside the trench. The French drains will then go inside the trench and will separate the water away from the foundation. The French drains will run out of the trench and down the driveway to an opening on the house side, while the French drains that run out of the trench will go towards the house and back towards the yard.
The French drain pan is similar to a slotted pipe and is made up of one or more perforated pipes that are set parallel to each other. The perforations allow liquid to drain away, while the solid French drains keep water in. The French drains are a great way to conserve energy by directing liquids and moisture away from foundations.
If you’re looking to save money and install French drains in your basement waterproofing project, there are several options available. You can either perforate the entire floor and install French drains at every pervious floor location or you can install French drains that are perforated only at certain locations. Either way, make sure to contact a licensed contractor who is familiar with installing French drains and other basement waterproofing options so you’re guaranteed to have an effective and safe system installed in your home.