French drains, mon ami, help prevent foundation damage and basement flooding
February 3rd, 2012Invented over 150 years ago by a Massachusetts farmer, the French drain is an ingenious solution to the problems caused by standing water
DENVER, CO – In France, a popular choice for breakfast is bread dunked in a mixture of milk and egg and then placed on a griddle. Only, the French don’t call it French Toast like Americans do, but rather “old bread,” because they make it out of the leftovers from yesterday’s fresh baguette.
You’d think that same name reasoning would apply to the French Drain, but non, you’d be wrong. Guess again, mon ami. The French Drain has nothing Gallic about it, in fact, but it is an old and ingenious solution for homeowners experiencing standing water or improper rainwater diversion on their property, or a basement that frequently floods, even a little.
A French drain is a relatively simple type of drain utilizing gravity to keep water from collecting in the wrong spot. This is a big problem for people whose homes are prone to collecting ground water, particularly around the foundation. Water retained here can and often does seep into the basement through the foundation, creating interior flooding issues, but even small amounts of water sitting next to the foundation over time can cause it to erode away.
The French drain gets its name from the inventor, Henry French, an American farmer from Massachusetts who was also a lawyer and once served the country as Assistant U.S. Treasury Secretary. In 1859, French published a book called “Farm Drainage,” in which he described a new type of drain, and the basic principles he set down are still in use today.
For a long time, many people, particularly farmers, had troubles with water collecting in certain spots in fields and around structures, and they built trenches, or drains, to divert that water to another place. The trouble was, however, that silt would build up in the drain, clogging it. The innovation that French brought to this type of drain was the addition of rocks, or crush rock gravel, into the channel that acts as a sifter to filter out silt, leaves and debris, allowing the water to flow smoothly.
The modern French drain, which is also called a drain tile or a perimeter drain system, involves the digging of a sloped trench, which is filled with gravel and often covered by a layer of sand. Many installations also include a plastic drain pipe with holes in it (the holes are covered with a mesh to prevent silt buildup). The trench is sloped away from the structure or the standing water, and then feeds to a lower spot where water buildup wouldn‘t be a problem, or it drains into the street or a city sewer system, or even to a sump filed where a sump pump can safely evacuate it. They can also be placed inside the structure, say around the perimeter of a basement, where excess water can be collected and then diverted away from the structure.
French drains are relatively easy to install in new construction, for obvious reasons, but are often put in place in existing structures where a water problem develops to divert water away from where it can cause damage. For this reason, a French drain is often installed in conjunction with foundation repair to save a home from further damage.
Modern homeowners experiencing water problems around their foundations or in the basement can look to a more than 150-year-old solution with a professionally designed and installed French drain. Then they can enjoy some French toast with the confidence that their drainage problems are over.
For all of your plumbing needs, including expert water damage diagnosis and French drain design and installations, call on the professionals at Benjamin Franklin Plumbing of Denver, serving the Colorado Front Range area for nearly 35 years. For complete information phone 1-866-PUNCTUAL or Denver local at 303-340-3400.