Irrigation Systems *** Sprinkler Repair *** French Drains*** Sprinkler System Installation*** Surface Drains *** Sump Pumps *** Rain Sensors ***Drainage Systems
CMG Sprinklers and Drains - 405-226-0629 -- Since 1993 we have fixed all types of
Lawn sprinkler problems ranging from Broken Heads to Leaking Valves to out-of -date Controllers. CMG also Specializes in:
French Drains, Surface Drains, Surface Drain, Basement Drains, and Sump Pumps solving all types of drainage problems and flooding. Servicing:
Oklahoma City, Norman, Moore, Del City, Mid West City, Yukon, Mustang, Edmond, Purcell, and Blanchard.
CMG Sprinklers and Drains -- Servicing
Central Oklahoma including:
Oklahoma City,
Moore,
Edmond,
Norman,
Midwest City,
Del City,
Mustang,
Yukon,
Blanchard,
Newcastle, and
Purcell.
Just what is a "
French Drain?" Many times people incorrectly
use the phrase, "
French Drain," to apply to many different types of
Drains that could be used in a
Drainage System. The term is widely used and many times incorrectly connected to "
Surface Drains," or "
Channel Drains."
A
Surface Drain has a grate that sits on top of a basin. The basin is underground. A
Drain Pipe is connected underground to an outlet on the
Drain Basin.
Storm-Water Drains through the grate into the
Drain Basin. Once in the
Drain Basin, water travels out of the basin through a
Drain Pipe. The
Storm-Water continues downhill in an underground
Drain Pipe to an exit point.
THIS IS NOT A
FRENCH DRAIN!
A
Surface Drain may come in many different shapes or sizes. The
Drain Grate may be round or square. Here is a picture of a common
Surface Drain.
A
Channel Drain is a type of
Surface Drain and many times is installed in concrete across sidewalks or driveways.
A
French Drain is completely different from a
Surface Drain. A basic
French Drain consists of a
Perforated Drain Pipe in the bottom of a trench. The
Drain Pipe should have a neoprene sock around the
Perforated Drain Pipe. This is to ensure that the
Drain Pipe does not become clogged.
The dirt that was taken out to make the trench is hauled away. It is replaced by some type of small stone or gravel depending on what is desired or available. I prefer crushed 1 inch lime stone. It is the most economical option in my area. Pea Gravel or some other type of small stone can work just as well. The lime-stone or gravel is placed in the trench on top of the perforated
Drain Pipe and filled all the way to the surface (ground level). In some cases where the
French Drain needs to be deep or is being placed in sandy soil, a special trench liner must be placed in the trench before the perforated
Drain Pipe or the Gravel are installed. This helps maintain the integrity of the trench over time. It also increases the cost of the
French Drain and the amount of time to install it. I install a trench liner in a
French Drain about 20% of the time. Most of the time a liner in not needed.
A
French Drain is designed to handle a large volume of water and cover a large area. The Drain is anyplace the trench goes. It has many applications and can be used in many situations. It can be installed by itself or incorporated into a
Drainage System with
Surface Drains or Gutter Down-Spouts connected to it.
The main downfall of a
French Drain is that they, for the most part aren't very pretty. They don't look very nice in a yard once they are completed.
Depending on the area the
French Drain is installed and the type of grass around the
French Drain, will dictate whether grass grows over the lime stone. Grass can grow up and through the gravel in the
French Drain over time eventually covering the gravel. This is Ok. It won't have a measurable effect on the performance of the
drain.
DONT COVER THE GRAVEL IN THE
FRENCH DRAIN WITH DIRT. THE
FRENCH DRAIN WON'T WORK IF THE TRENCH IS CLOGGED WITH DIRT. DON'T EVEN INSTALL IT IF YOU ARE GOING TO COVER IT UP WITH DIRT.
DECORATIVE STONE CAN BE USED TO COVER A
FRENCH DRAIN AND THEY LOOK GREAT AND LAST A LIFETIME.
