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French Drain, Drainage System Information, Surface Drains

The term, “French Drain” gets thrown around a lot.  Many times people say they need a “French Drain,” when they mean Surface Drain, or Channel Drain.  It is becoming a Catch-All Phrase that may refer to any type of drain.  French Drains provide specific benefits that are different from Surface Drains.

Just what is a “French Drain?” Many times people incorrectly

French Drain can protect your foundation!

use the phrase, “French Drain,” when they mean “Surface Drain” or “Channel Drain.”

A basic French Drain consists of a Perforated Drain Pipe in the bottom of a trench. The French Drain Trench runs through a Problem Drainage Area that needs to be drained.   The French Drain Pipe is perforated (Full of Small Holes) and has Neo-Prene Soc around the pipe.  This soc helps prevent debris from clogging the French Drain Pipe.

Perforated French Drain Pipe

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.

French Drain March 2011

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.

French 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.

 The French Drain Installation we did this week was a little more difficult than normal.  Many times the route that a Perforated French Drain Pipe must travel to its exit point is not very easy from an installation point of view.  French Drains may have to travel through tree roots, (big ones) under sidewalks, through retaining walls, around swing sets or dog kennels or Mom’s Prize Rose Bush.  The 4 inch French Drain we installed this week was in Oklahoma City south of 23rd in an old part of town where all the houses were old 2 or 3 story homes with lots of huge Elm Trees.  The Elm Tree in Question actually was just an old stump that had been topped out but not completely removed.  They left the roots just for us!  The roots were growing into the homes foundation and were right in the way of the path of the French Drain.  Forty feet of solid Elm Roots and 4 chain-saw blades later CMG was successful in running a new French Drain through a tree stump.  Yuck! “Well you gotta  do what you gotta do!”

French Drain with colored river rock

French Drain with colored river rock

A little info about French Drain Pipe and Tree Roots.  Normally tree roots don’t seek out and penetrate French Drain Pipe.  Tree roots seek moisture and residual water that may stay inside Solid Drain Pipe.  French Drain Pipe is perforated.  Water that does not reach the exit point of the French Drain will seep out of the Pipe into the surrounding dirt.  Solid Drain Pipe that is used with Surface Drains can be penetrated and eventually clogged by roots if the pipe does not have good slope or “Fall”.  If the solid pipe does not drain well and has residual water, tree roots will seek it out.

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Drain Pipe running from French Drain to the street in Oklahoma City

Drain Pipe running from French Drain to the street in Oklahoma City

Drainage Systems are designed to protect your home or business from standing water.  Storm-Water Runoff can cause damage in many ways.  Water from your gutters can seep down into your home’s foundation if it has no good way to drain off.  If the temperature then drops below freezing, the water around your foundation can freeze and cause serious damage to the home’s foundation.  Foundation repair can cost more than a Drainage System.

Drainage Systems typically make use of , French Drains, Surface Drains, or Channel Drains.  Depending on the Drainage Problem, A Drainage System may utilize one or several types of Drains.  CMG might install, for example, A Surface Drain in the middle of a driveway that runs to a gutter that is connected into the drain pipe.  The Drain Pipe might continue to a French Drain running parallel to a homes foundation.  Next the drain pipe might continue to a channel drain cutting across a sidewalk.  The Drain pipe might then reach its exit point running out through a curb fitting installed and cemented through the curb.

A Surface Drain basically is a basin that has a grate on the top.  A drain pipe is connected to the basin below ground.  The water flows in through the grate and down into the basin.  The water then exits the Basin through the Drain Pipe and move toward the exit point of  the Drainage System.  Surface Drains are designed to handle water that accumulates in a low areas.   These areas should not be too large or broad, and the water that drains into a surface drain should not be moving very fast.  Surface Drains can become overwhelmed if they are placed in an area that must move a large volume of water, quickly.  Selecting the correct drain for the specific drainage problem is a benefit that CMG provides through twenty years of experience.

French Drain Contractor in Oklahoma City, Norman, Edmond, Yukon

Angie’s List Customer Service Award Winner        Activerain Member

Six Inch French Drain Installed along Foundation in Edmond

Six Inch French Drain Installed along Foundation in Edmond

 CMG installs all types of French Drains and Drainage Systems, Sprinkler Systems and provides expert Sprinkler Repair.

 

FRENCH DRAIN IN EDMOND OKLAHOMA, DRAINAGE CONTRACTOR

Recently CMG installed a large 6 inch French Drain in Edmond.  The customer had water running under his back porch step and into his basement.  We did a Free Drainage Diagnostic and Estimate.  The French Drain design that we proposed would intercept the surface water and subsurface water that was flowing under the steps.  The French Drain design called for a 6 inch French Drain to be installed above and several feet away from the steps.  It would run around the house parallel to the foundation and about 5 feet to the East.  The French Drain would run past the steps to a point where water must cross the French Drain or run up hill to the steps which in this case was not possible.  Once past the steps, the French Drain would transition to Solid 6 inch Drain Pipe and continue on around the house to the Pop-Up Emitter down hill in the side yard.  Along the way we attached several Gutter Down Spouts into the French Drain.

 

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.  A  Trench Liner is sometimes used depending on the Drainage System Design and the type of soil.   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. A trench is dug that is slightly wider than the French Drain Pipe that is being used.  There are several sizes of French Drain Pipe.   Three Inch, Four Inch, and Six Inch are the most common sizes of French drain Pipe. The dirt that is 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 French Drain.  In some cases thick grass growing up through the French Drain will create a natural “Thatch” filter.  This makes the French Drain invisible.  The trick is to allow the grass to grow over the French Drain Gravel without covering it up with dirt.  Grasses such as Bermuda which grow well in the sun will put out runners and new roots and will grow up and through the French Drain.  This will not affect the performance of the French Drain.  The problem is that some times depending on the type of soil involved, it may take a long time to completely cover up the French Drain.  Sprinkling grass seed down in the gravel will speed up the process.
DON’T 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.   
If you install a French Drain in a sunny area, you can:
                                         A.  Leave the  French Drain as-is and allow grass to grow over it in time.
                                         B.  Add grass seed directly to the French Drain gravel with (Light Hand Watering) to speed the growth process
                                         C.  Leave the French Drain as-is but decorate it with stepping stones and landscaping rocks ( leaving large cracks between stones to allow water to get into the French Drain,
2
If you install a French Drain in a shady area you can:
                                        A.  Leave the French Drain as-is, it will work well and look as it did for many years.

B.  Leave the French Drain as-is, but decorate it with stepping stones or landscaping rocks.  Many French Drains are hidden under rock walk ways.

 

IF YOU NEED WATER DRAINED AWAY FROM YOUR HOME OR BUSINESS CALL CMG.  405-226-0629  CMG Sprinklers and Drains installs all types of Drainage Systems and French Drains.

French Drain Installation is a primary focus for CMG Sprinklers and DrainsAngie’s List has awarded us their Customer Service Award for the State of Oklahoma for top quality French Drain Installation.  Along with the French Drain Customer Service Award, Angie’s List has given CMG their top A+ Rating and placed us at the top of their website for Oklahoma French Drain InstallationCMG also installs a variety of other types of Drains.  Our Drainage Systems may utilize: French Drains, Surface Drains, Channel Drains, Trench Drains, Basin Drains, and Sump Pumps.  In the past 21 years, we have installed French Drains to keep water away from home and business foundations, Surface Drains to keep water away from sidewalks and driveways,  Trench Drains, and French Drains to keep standing water out of flowerbeds and yards, and Sump Pumps to remove water from basements and outdoor low lying areas.

French Drain Running Through Low Areas in Yukon

French Drain Running Through Low Areas in Yukon

 

For 21 years, CMG has solved Drainage Problems for people in Central Oklahoma.  Experience is key in diagnosing Drainage Problems.  Some Drainage Problems are Simple and straight forward others are complex and difficult.  CMG utilizes a wide variety of Drains and Drain Pipes when designing a Drainage System.  A Simple Drainage System may use one type of Drain running through a Drain Pipe to an Exit Point.  A Complex Drainage System may use several types of Drains and Drain Pipes running to many exit points.  CMG Utilizes:  French Drains, Surface Drains, Channel Drains, Trench Drains and Sump Pumps.  The Drain Pipe we use may be  ADS, PVC, or Sewer and Drain Pipe.  Which Drain and Pipe used depends on the particular Drainage Problem.

Installing a Drain Pipe For a French Drain that Releases water through a Pop-Up Emitter at the Street

Installing a Drain Pipe For a French Drain that Releases water through a Pop-Up Emitter at the Street

Angie’s List rates us A+ and now has awarded CMG Sprinklers and Drains for our exceptional customer service in french drain

 

 

 

Good Information about French Drains and Drainage Systems

French Drains, Surface Drains, and Channel Drains are the three main ingredients of residential and business Drainage Systems.  Simply put, French Drains are used in large areas, Surface Drains are used in smaller areas and Channel Drains are used in and across Cement.

Some Simple rules about French Drains and Surface Drains.  A French Drain should be installed when there is a large volume of water to be drained over a large area.  Surface Drains are needed when the water volume is smaller and the Drainage Area is small and focused.  French Drains move away Surface Water and Sub-Surface water (water that flows under ground).  Surface Drains move only surface water.

 

Installing a Curb Fitting for a French Drain in Back yard

Installing a Curb Fitting for a French Drain in Back yard

 

 

French Drain Design must take into account many variables.  One consideration for a French Drain that many times is missed, is the type of soil.  French Drain Design must take into account the type of soil that the French Drain runs through.  If the soil is “Tight or made up of Clay, A French Drain Liner may not be necessary.  The Gravel or Limestone that is used to fill the French Drain trench may be all that is needed to maintain the integrity of the trench over time.   This means that dirt will not mix in with the French Drain Gravel and clog it up over time.  This is not the case however if your soil is sandy or loose.  A Trench Liner should be used to prevent this type of soil from moving into the gravel of the French Drain.  Trench Liners are relatively inexpensive and are not hard to install.  If you are not sure what to do then install the Trench Liner in the French Drain.

 

Drainage Systems can be made up of one drain or a combination of many drains.  Drainage  problems can be very complex.   Complex Drainage Problems may require a combination of several different types of drains all inter-connected and working together.  Other times the drainage problem may be simple and straight-forward requiring only one drain or several of the same type of drain connected together.

Curb Outlet as an Exit Point for a French Drain in Edmond

Curb Outlet as an Exit Point for a French Drain in Edmond

An example of a complex drainage system would be:  A French Drain in the back yard connected to a Surface Drain near a flower bed connected to several gutter downspouts, which are connected to a Channel Drain going across a driveway, which is connected to additional Surface Drain in the front yard, which runs to a Curb Fitting that lets all the water drain out on to the street.

Popup Emitter to release water from a French Drain in Yukon

Popup Emitter to release water from a French Drain in Yukon

A simple Drainage System might consist of a Surface Drain that is connected to a second Surface Drain which runs to a Pop-up Emitter which lets water drain over the curb and into the street.

CMG Installs all types of Drainage Systems  in Oklahoma.

Today we installed a 6 Inch French Drain at an apartment complex near Lake Heffner.  The French Drain started in the back yard of one unit.  The Drain Pipe went under the fence and into the adjoining unit’s back yard.  The French Drain then looped around their patio and out under their fence to the west.  To get the 6 inch Drain Pipe to the correct Exit Point, we had to cut out 30 feet of sidewalk and run the French Drain Pipe under the sidewalk.  Next, we replaced the sidewalk with new concrete.  Finally, we dug a drainage ditch across the front yard to the parking lot.  We covered the Drain Pipe with sod that we carefully removed when digging the trench.  At the edge of the parking lot a 6 inch Pop-Up Emitter was installed to release the Storm water.  Seven Gutters were connected directly into the Drainage System along the way.

Installing Gravel on top of a 6 inch French Drain

Installing Gravel on top of a 6 inch French Drain

This particular Drainage System was made up of 55 Feet of 6 inch French Drain, 78 Feet of Solid ADS Solid Drain Pipe, Seven Gutter Connections, and one 6 inch Pop-Up Emitter.

French Drain, Drainage System, Oklahoma City, Edmond, Norman, Yukon

FRENCH DRAIN, DRAINAGE SYSTEM, OKLAHOMA CITY, EDMOND, NORMAN, YUKON

 

French Drains can be installed by themselves, or as part of a Drainage System that uses other French Drains, Surface Drains, or other Drain combinations.  Typically a French Drain is used to protect a broad area that has a lot of standing water.  A French Drain might run along side a homes foundation, or beside a driveway, or on any Drainage Project where Sub-Surface water is the primary problem.  If water is running toward your home under ground ( through sandy soil), A French Drain is the only Solution  for draining away water flowing under ground.

After Diagnosing a Drainage Problem in Oklahoma City, We installed a 6 inch French Drain that went all the way around the pool in the back yard and then ran all the way to the street on both sides of the house. The French Drain made the shape of a horse shoe. The Drainage System had two Curb Outlets installed through the curb at the street. This gave the French Drain two different directions to allow the water to flow to the street.  Two Drain Outlets allowed the French Drain to move a huge amount of water during heavy rains.   A few weeks  later we got a call from our customer after a heavy rain.  She was very happy.  The French Drain did a great job protecting her pool.  All the Storm Water was diverted around the Swimming Pool.

French Drain installation is a big focus for CMG during our 21st year in business. A French Drain is one part of a Drainage System.  A French Drain can be connected to other types of Drains or Gutter Down-Spouts and then run through Drain Pipe to an Exit point where the water is released.

A Drainage Exit Point is the area where water goes to be released when it comes out of the Drainage System. The two most common exit points for a Drainage System are a Pop-Up Emitter or a Curb Fitting.
A Pop-Up Emitter is a Fitting on the end of a Drain Pipe that has a lid that pops up and releases water. When water drainage is complete, the lid shuts back.

Gutter Downspout Connected to 6 Inch French Drain
Gutter Downspout Connected to 6 Inch French Drain

CMG Installed a Double Six inch French Drain in Edmond this week.  A Double Six Inch French Drain is two six inch French Drains laid side by side in one very wide and deep trench.  It is designed to move a huge amount of water away from a home.   The CMG customer had several different drainage problems in their back yard.  After a thunderstorm, water would run under their back fence and into their garage.  The back yard was on a steep hillside and the water would run very fast down the hill and into the garage.  CMG installed 2 large six inch French Drains across the water’s path.  This allowed the water to be diverted into the French Drain which then ran through drain pipe to a curb outlet at the street.  Three Gutter Down Spouts were connected into the French Drain.  The French Drain created a protective barrier for the garage.  A 12 inch Surface Drain was also included in the Drainage System.  It was placed up against the driveway and connected with 4 inch Solid drain pipe to the 6 inch French Drain.  Water was completely rerouted away from the home.  A French Drain  and Surface Drain combination in this case was the best solution to this particular drainage problem.

Installing a Curb Outlet for a French Drain in Edmond
Installing a Curb Outlet for a French Drain in Edmond

 

If you live in Oklahoma City and need a French Drain installed in your yard, or along your driveway, or near your foundation, give CMG a call.  If you live in Edmond or Norman and need a Surface Drain installed in the concrete in your sidewalk or driveway, we can help.  If you live in Mustang or Yukon and would like to protect your trees or flower beds from standing water with a French Drain, CMG specializes in just that!

What is a French Drain?

Just what is a “French Drain?” Many times people incorrectly

French Drain along fence

 

use the phrase, “French Drain,” when they mean “Surface Drain” or “Channel Drain.”

 

A basic French Drain consists of a Perforated Drain Pipe in the bottom of a trench. The French Drain Trench runs through a Problem Drainage Area that needs to be drained.   The French Drain Pipe is perforated (Full of Small Holes) and has Neo-Prene Soc around the pipe.  This soc helps prevent debris from clogging the French Drain Pipe.

Perforated French Drain Pipe with Soc

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.

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.

French Drain with Colored Gravel

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.

Oklahoma City French Drain

OKLAHOMA CITY FRENCH DRAIN

Angie’s List Customer Service Award Winner        Activerain Member

Oklahoma City is one of the communities in  Oklahoma that CMG services.  We have installed almost a thousand French Drains in the Oklahoma City community in the past 21 years.  Oklahoma City  has many hills and valleys.  Many Neighborhoods are built on hillsides.  This causes many Drainage Problems.  CMG has installed French Drains by themselves and as a part of Drainage Systems to protect Driveways, Sidewalks, Foundations all over Edmond.  French Drains may be installed in Flower Beds or grassy areas too.  French Drains when installed correctly can provide many years of property protection and Piece of Mind.

CMG has 21 years of experience installing French Drains, and Drainage Systems.  This ensures that a Drainage System that we install won’t have Drain Pipes that are too small, or Surface Drains installed where French Drains Should be placed, or Exit Points that allow water to Stand and become stagnant.  CMG relies on 21 years of experience to Diagnose a Drainage Problem.   Many Drainage Problems are not as simple as they seem.  Understanding why a French Drain should be installed over a Surface Drain in particular situations is just one of many variables that must be considered when Diagnosing a Drainage Problem.

Many times CMG is asked to look at Drainage Systems that aren’t working correctly.  Here are a few common problems that we find:

French Drain Pipe is too small for the Drainage Area.

French Drain is not connected to an Exit Point.

French Drain is installed where a Surface Drain is needed.

Surface Drain is installed where a French Drain is needed.

Too many gutters connected to French Drain.

French Drain covered with dirt.

Exit Point Covered with Dirt.

Water flow is bad for French Drain,  (trying to drain water up hill)

These are just a few of the Problems we are asked to solve when fixing a Drainage System that wasn’t designed correctly.

Drainage Systems can be made up of one drain or a combination of many drains.  Drainage  problems can be very complex.   Complex Drainage Problems may require a combination of several different types of drains all inter-connected and working together.  Other times the drainage problem may be simple and straight-forward requiring only one drain or several of the same type of drain connected together.

An example of a complex drainage system would be:  A French Drain in the back yard connected to a Surface Drain near a flower bed connected to several gutter downspouts, which are connected to a Channel Drain going across a driveway, which is connected to additional Surface Drain in the front yard, which runs to a Curb Fitting that lets all the water drain out on to the street.

A simple Drainage System might consist of a Surface Drain that is connected to a second Surface Drain which runs to a Pop-up Emitter which lets water drain over the curb and into the street.

An “Exit Point” is the term used for where all the water leaves the Drainage System.  Determining the Exit Point is very critical.  It is one of the first things we do when diagnosing a Drainage Problem.

Drainage Systems can:

1.  Keep water away from foundations — A French Drain is best because it can move Surface Water and Sub-Surface Water (water moving under ground) away from the foundation.  Many times less experienced companies install Surface Drains to keep water away from foundations.  This can be a big mistake.  A Surface Drain can’t move or drain Sub-Surface Water.   Also A Surface Drain often can’t move enough water fast enough and easily becomes overwhelmed during a heavy rain.  A Surface Drain also can’t cover or protect a broad enough area. Surface Drains should be designed in a Drainage System to be located in smaller Drainage Areas moving moderate amounts of water.  Surface Drains look better than French Drains.  If ,”appearance” is more important than Drainage Capacity, Go with the Surface Drain.  Just know what you are getting into and what your expectations should be. One side of a foundation alone,  can be over 100 feet.  A 4 inch or 6 inch French Drain is best when protecting a large area such as a foundation.

2.  Keep water away from small or inclosed areas.  This might be a low area just through a gate on the side of a house, or the low area between a flowerbed and the wall of a house, or standing water on or near a sidewalk or driveway.  These types of Drainage Problems are best served with Surface Drains.  A Surface Drain can move water away from a low area that is relatively small.  This can occur in yards, flowerbeds, sidewalks and driveways.  A surface Drain is designed to move Surface Water away from a problem area to a predetermined exit point.  Surface Drains are available in many sizes.  How quickly they remove standing water is usually determined by the size of the pipe that is connected to the drain.

Simply put, a Drainage System is one or a group of underground Drain Pipes that take water away from a place that has water standing on it or flowing across it.  The water that is in the problem area, can be causing damage or may be inconvenient or both.  (Usually Both)  A simple Drainage System is a Drain for the water to enter, a Drain Pipe to move the water away from the Drain, and an Exit Point for the water to be released out of the Drain Pipe.

Drainage Systems quickly can become more complicated.  Considerations must include:

How does the water get to the problem area?  There may be one or many sources.

Water Sources:

1.  It falls from the sky directly

2.  It flows down hill over the surface (surface water)

3.  It flows underground under the surface (sub-surface water)

4.  It flows from the edge of a roof ( There may be many roofs near the problem area, neighbors etc.)

5.  It flows from a gutter downspout

6.  It flows over the edge of a gutter because the gutter is too small or clogged

7.  It flows up from the ground (seeps and springs are common in Oklahoma)

8.  It flows from a sprinkler system use ( yours or your neighbors)

9.  It flows from a leaking pipe ( water mains, water meters, water lines, sprinkler pipes, sprinkler valves)

There are other reasons for Drainage Problems, the above reasons are just the most common.

Once the number of water sources is determined, a rough estimate of the amount of water that needs to be drained away on average must be estimated.  This can be simplified down to “SMALL, MEDIUM, OR LARGE AMOUNTS OF WATER TO BE DRAINED AWAY.  You don’t have to be an engineer trying to calculate fluid dynamics.  Experience at diagnosing drainage problems helps however.  How much water needs to be moved will help determine the type and size of the Surface Drain or French Drain that needs to be installed.  It also helps to determine the size of Drain Pipe required for the Drainage System.  A good rule to follow is, “If in doubt, install a larger Drain and Drain Pipe.”  Unused Drainage Capacity is better than property damage caused by a Drain that is overwhelmed by too much water.

For home and small business use typical materials used are:

6 inch, 9 inch, and 12 inch Surface Drains

3 inch, 4 inch, and 6 inch Drain Pipes

3 inch, 4 inch, and 6 inch French Drains

French Drains move more water than Surface Drains —

French Drains move Surface Water and Sub-Surface Water

Surface Drains move Surface Water only

Surface Drains look nicer than French Drains in most cases

Once the type and number of drains is determined and what size Drain Pipe will connect them, an exit point must be selected.  (Where is the Drainage System going to take the water to and release it?)

The Drainage Curb Fitting is installed when the desired exit point for the French Drain will release the Drainage Water into the Street.   The Drainage Curb Fitting is rectangular in shape and made to be installed through the curb.  A small section of Curb is cut out with a concrete saw.  The Section is a few inches wider than the Drainage Curb Fitting.  We then install new concrete around the curb fitting.  Once the concrete has dried, the Drain Pipe coming from a French Drain or Surface Drain is connected to the Drainage Curb fitting and then covered with dirt.DSC00560

Edmond Oklahoma French Drain

EDMOND OKLAHOMA FRENCH DRAIN

Angie’s List Customer Service Award Winner        Activerain Member

Edmond is one of the communities in Central Oklahoma that CMG services.  We have installed almost a thousand French Drains in the Edmond community in the past 21 years.  Edmond has many hills and valleys.  Many Neighborhoods are built on hillsides.  This causes many Drainage Problems.  CMG has installed French Drains by themselves and as a part of Drainage Systems to protect Driveways, Sidewalks, Foundations all over Edmond.  French Drains may be installed in Flower Beds or grassy areas too.  French Drains when installed correctly can provide many years of property protection and Piece of Mind.