Open French Drain Evolution.
French Drains today are not what they once were. In the 1970s they might be installed by a landscaper or a brother-in-law who might have known a little about drainage.
French Drains were “Capped” in most cases. Which means that the gravel in the French Drain had Dirt on top of it. A Capped French Drain can only remove Ground Water. It does nothing to remove “Surface Water.”
Ground Water
Ground Water is what it sounds like. It is below ground. Ground Water moves slowly downhill underground.
Surface Water
Surface water is also just what it sounds like. It is water above ground. In every case Surface Water moves downhill much faster than ground water.
Surface Drains
Surface Drains were added to or connected to Capped French Drain. This improved the situation a little bit. Some of the Surface Water went into the Surface Drain that was connected to the Capped French Drainpipe which then took the Mixture of surface water and ground water to the drain exit.
This combination of Surface Drains connected to Capped French Drain Failed during heavy Rains, however. Fast moving Surface Water would just run around the Surface Drain and head on down the hill. Other times the Surface Drains could not take in the water fast enough into the Drainpipe. For this design to work, the Surface Water had to be moving slowly, and the Surface Drains had to be placed in low lying areas.
Over Time
Over time the above design would drain water away. Depending on the volume this could take minutes or days.
Open French Drain

French Drain Protecting Driveway
Out of necessity, the Open French Drain was born. Simply put, don’t put dirt on top of the French Drain. Fill the French Drain Trench completely with Gravel.
This design eliminates the need for the Surface Drains. Water is taken in much faster than the surface drains ever could. The Open French Drain also could cover a much larger and broader area.
Parts of a French Drain
Parts of a French Drain are Drainage Trench, French Drain Trench Liner, French Drainpipe, Gravel or Crushed Limestone, Transition Drainpipe and Drainage Exit.
Drainage Trench
A Drainage Trench is where a French Drainpipe is located. The Drainpipe is placed in the bottom of the Drainage Trench. It needs to be in a low area where the water is standing or flowing toward.
French Drain Trench Liner

The White Material is the Trench Liner. The black material is the Pipe Filter.
A liner is placed in the bottom of the Drainage Trench. This liner allows water to enter the French Drain from the dirt surrounding the French Drain. Underground water, AKA “Sub-Surface Water, “can be drained away.
French Drainpipe
French Drainpipe is perforated. It is full of thousands of little holes. The holes allow water to enter the French Drainpipe. This can be Surface Water or Sub-Surface water. A cloth filter is wrapped around the pipe.
Gravel or Crushed Limestone
Gravel or Crushed limestone is used to fill the French Drain Trench once the Perforated Pipe is installed.
Transition Drainpipe
A Transition Drainpipe is a Solid Pipe that is connected to the Downhill end of the French Drain. It takes water away from the French Drain.
Drainage Exit
A Drainage Exit is a release point. This is where water leaves the Solid Transition Drainpipe.
Pop-Up Emitters are one potential exit for a Drainage System.
A Curb Outlet can also be used as an exit.
Oklahoma Drainage and Sprinkler Repair — Installing – French Drains – Surface Drains – Channel Drains – Sump Pumps.
Providing Expert Sprinkler Repair – Broken Sprinkler Pipes – Sprinkler Head Adjustment – Sprinkler Valve Replacement
We provide Service for Folks in: Norman, Oklahoma City, Edmond, and Moore.
Central and Western Oklahoma is our Service Area since 1993.
(405) 203-9419
French Drains can utilize several types and sizes of French Drainpipe. An older type that is not commonly used any more is 4-inch PVC Pipe with large half inch holes drilled in the Pipe. This doesn’t work very well, Because the holes are too large and the number of holes in the French Drainpipe are too few. Also, there is no filter or “Soc” around this particular French Drainpipe. If it is used in sandy or loose soil the holes will clog and the pipe will fill up with sand. PVC French Drainpipe should be avoided.
ADS French Drainpipe is much better; the holes are smaller and much more numerous. It also comes inside a soc that acts as a filter and helps keep sand and debris out of the French Drainpipe. It works very well.
For Small business and Residential French Drains, four-inch ADS Perf/Soc French Drainpipe is adequate and the most common. It is used for the majority of all Drainage Systems.
French Drains can be installed using 3-inch ADS Perf/Soc but many times it is too small and can be overwhelmed by a heavy rain or from a bad design. (Too many gutters down spouts connected directly into the French Drain, For Example) Three Inch French Drainpipe should be avoided if possible.
6 Inch Pipe
Six-inch ADS Perf/Soc French Drainpipe is usually a good idea when possible. It carries a much larger volume of water. Six Inch pipes are rarely overwhelmed.
Drainage and Sprinkler Repair. We have installed sod for all of Central and Western Oklahoma since 1993.
Oklahoma Drainage and Sprinkler Repair
We install sod and provide lawn leveling and dirt work services for all of Central and Western Oklahoma. If you live in Edmond and need a low spot fixed in your yard, or if you live in Norman and want Fescue Sod installed under a tree in your front yard, we can help.
Oklahoma Drainage Installs Sod, Levels Lawns. We also Install: French Drains, Surface Drains, Channel Drains, and Sump Pumps.
Oklahoma Drainage Now is adding Sod Installation to our Drainage System Services.
Fescue
We install Fescue and Bermuda Sod by the “Pallet.” Each Pallet provides roughly 450 square feet per pallet.
In the above picture, we installed two pallets of Fescue. It was unrolled in the back yard and totally changed the appearance of the Yard.

Fescue Sod in the back yard.
Fescue Sod must be installed in the shade and needs a lot of watering at the time of installation. It also needs water on a regular basis to maintain it.
Bermuda
on the other hand needs sun and doesn’t do very well in a heavily shaded area. It also is a little hardier than fescue and is more heat resistant. It also needs lots of water at the time of installation.
Both types of sod need attention and water until they are established. You can’t just unroll the new sod and leave it and expect good results.
If you have a Lawn Sprinkler System, then you are ahead of the game. Dragging hoses around to keep new sod alive is a lot of work and must be taken into consideration before making a purchase.
Oklahoma Drainage and Sprinkler Repair, can deliver up to two Pallets of Sod at a time.
If you live in Norman and would like to have Fescue installed in your back yard, or your Edmond home needs Bermuda installed along the driveway, Give us a call. Oklahoma City Residents are our largest sod customers, but we will deliver to Altus, Lawton, Ardmore,
In the picture above, we also installed the metal “Back Yard Lighting” Poles set in concrete and then the new sod installed around them. It looks nice.
Sprinkler Repair Service Provided by Oklahoma Drainage and Sprinkler Repair
Since 1993 we have Replaced Sprinkler Valves that were sticking or were wore out.
Thousands of Sprinkler Heads have been adjusted.
Countless Sprinkler Controllers have been Reprogramed or Replaced.
We also have fixed a broken Sprinkler Pipe or Two. Seems like a million. Ok, not that many.
I wonder how many? A lot!!!!
Oklahoma Drainage and Sprinkler Repair provides Service for all of Central Oklahoma Including: Oklahoma City, Norman, Edmond, Moore, Yukon and Mustang.




























