French drain installation is not a difficult process but it does require diligence and skill. There are numerous products on the market that make the process simple and easy, but only if you know what you are doing. If you are considering French drains, there are a number of factors you should consider before you take the plunge.
In areas where sewer and storm water drainage systems are inadequate, French drain installation will be necessary. Most homeowners installing French drains in their basement typically spend between two to four thousand dollars for the 100 foot long drain pans. The average price to install French drains ranging from $2,500 to more than six thousand dollars. Costs can be as low as just $1,100 for a 100 foot minimum drain pan in an exterior location to more than ten thousand dollars for a 100 foot minimum drain pan in an interior location. Professional drain installation services are available and most do not charge for estimates or consultations unless money is an issue.
When installing French drains, or any type of drainage system for that matter, you need to understand the difference between French and straight fiber-glass. A fiberglass liner is constructed of fiberglass reinforced plastic and does not provide a thermal barrier. For this reason, French drains must be placed above a mineral foundation that may be sloping towards the house. For this reason, if you are installing a French drain where water is draining onto your retaining wall, you will need to remove the soil around the retaining wall and relocate the drain to a place above the drainage system.
In many cases, French drain installation consists of cutting out the existing drain pipe and replacing it with a new, perforated pipe, approximately one foot inside of the perimeter of the slope. The new pipe is installed using a ratchet device and perforated to allow the water to drain away from the house and pool. The French drain is connected to the perforated drain with a flexible rubber or nylon ring, which allows the water to flow into the perforated pipe. The French drain and the perforated drain are connected to each other at the point where the slope meets the house.
Depending on the specific drainage system you have installed, there may be more than one connection point for the French drain to perforate. Some of these points are located within the house, while others are located outdoors. There are a number of different ways the French drain installation process works, depending on the system you have. If you are unsure of how your French drain works, you should contact a qualified professional to make sure the installation process is correct. You may want to install both the French and perforated drain at the same time, especially if you have a larger French drain installation. For this type of setup, it is usually a good idea to get the experts to come out and take a look at your drainage system first.
In many cases, if you are going to install French drains outside of your home, you will also have to install an outlet to connect the French drain to the house. Most outlets are located within the corner of the yard, although you may have to relocate an outlet if the lot slopes toward your house. If you are installing the French drain within your backyard, then you should install the outlet to the backyard as well, but you may not need to relocate an outlet if the backyard slants toward your house.
Some homeowners choose to install the French drain along retaining walls. If this route is chosen, then it is important to make sure that the retaining wall is strong enough to handle the weight of the French drain pipe. Before installing the pipe, the homeowner should cut down any tree branches that are near the place where the French drain will be installed. This will help prevent the tree roots from becoming entangled with the pipe.
The main part of French drain installation is the excavation. It is important to dig the trench very slowly to ensure that you don’t compromise the integrity of the drainage pipe system. Once the area has been excavated, the work gets easier with the help of a pressure washer and a backhoe. You will probably also need to purchase a filter fabric to protect the French drain and the outlet pipe from dirt and debris. Make sure to choose a filter fabric that is durable, water-resistant, and easy to clean.