Archive for the ‘French Drain Design’ Category

Harsh weather in Oklahoma seems to becoming more common.  In 2013,  Norman Oklahoma had 4 inches of rain in two hours.  That’s the most rain in a short time that I can remember.  Storm-Water runoff can cause damage to all types of property and buildings.  Water getting inside your house is never a good thing.  A Drainage System that utilizes a French Drain can help.

Oklahoma Drainage Installs 4 Inch and 6 French Drains.

A French Drain is the “Intake” part of a Drainage System.  Simply Put, the French Drain is the part of the Drainage System that takes in the water in the low areas and gets it into the pipe.

Installing 4 Inch French Drain With Trench Liner and Pipe Filter In Blanchard Oklahoma

Installing 4 Inch French Drain with Trench Liner and Pipe Filter In Blanchard Oklahoma

 

French Drain – A French Drain  is a perforated pipe that is basically full of slits or holes.  A trench is dug across the problem drainage area.   A Semi-permeable  liner is placed in the trench which lets in water but not dirt. The dirt from the trench is hauled away.   The French Drain Pipe has a Neo-Preen Soc around it witch also lets in water but keeps the dirt out.

The perforated pipe is placed in the trench.  The Drainage trench is dug deep enough so that the perforated French Drain Pipe is several inches below ground level when placed in the trench.  Next gravel or some type of crushed stone is placed on top and around the French Drain perforated pipe until the trench is full.

French Drains can be complex or simple.  A Simple French Drain System is a French Drain Connected to an Exit Drain Pipe that is released out a pop up emitter.

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.

French Drain Installation   French Drains are designed to do a lot of things.  If you have an area that has unwanted water standing in it or running across it.  A French Drain can be the answer.

A French Drain is a trench that runs across the Drainage Problem Area.  A French Drain Pipe is placed in the bottom of the trench.  The French Drain Pipe is perforated with thousands of small holes.  In most cases the Drain Pipe has a nylon soc around the pipe to act as a filter for the French Drain.  The French Drain trench is then filled with some type of small rock or stone.  We typically use crushed 1 inch Lime Stone to cover the French Drain Pipe.  The dirt that was dug out of the trench is taken away or spread out around the French Drain.  The Lime Stone replaces the dirt and fills the French Drain Trench all the way to the surface.

French Drain across yard

French Drain Will disappear once grass grows over it. Its will still be fully functional.

The Drainage part of our company name means that we solve water problems for people in Oklahoma.  Heavy rain is becoming more common.  Back in 1993 when I first started, a hard rain was considered to be about an Inch per/hour.  It was fairly rare but not too uncommon.  Today things are different.  A weather report of rain fall at or above 4 inches per/hour was not uncommon in 2019.  Excess water causes all types of damage to property both residential and commercial.

Our Drainage Systems drain water away from places you don’t want it to be.  You might have water standing along the foundation of your house, or inside your basement.  You might have water on your driveway or flowerbed too.

Designing a French Drain or a Drainage System

When I talk to a potential customer while doing a Drainage System estimate, I take a lot of things into consideration.  First I have the Customer show me where water is standing or where it is going that it shouldn’t.  This is part of defining the specific problem area.  Sometimes the Water Problem Area is larger and more involved than the customer realizes.  Once the Water Problem Area is clearly defined,  the next step is to determine how the water is getting to the problem area.  Many times there is more than one Water Source to the Water Problem area.  A big mistake in Drainage System Design is to stop once the most obvious  Water Source is found.  A Drainage System Designer must be a detective to some degree.  For Example:  Water running down the hill and onto the back patio might be the most obvious water source.  Sub-surface water or a neighbor’s new gutter downspout could also be contributing.  Most of the time water gets into the problem area from more than one source.

Oklahoma Drainage has been installing French Drains since 1993.  We also install Fescue Sod and Bermuda Sod by the pallet as well.  A pallet of sod will cover about 450 square feet.

Oklahoma Drainage also installs Surface Drains of all kinds including Channel Drains in Driveways or 12 inch, 9 inch, and 6 inch Drain basins in yards and sidewalks and along driveways.

Channel Drain Across Driveway

Oklahoma City Channel Drain

 

Sorry I got sidetracked.  Back to talking about French Drains.   French Drains keep water off of Foundations, Sidewalks, and Driveways.

THREE BAD THINGS CAN HAPPEN WHEN WATER SITS AGAINST CONCRETE.

  1. Concrete can break down and deteriorate from temperature change when the water freezes and thaws.  Lots of cracks can occur.
  2. Concrete can be de-stabilized.  Supporting soil can be washed away or removed.
  3. Mold!!! Yikes!!  Mold needs water.  Water against a foundation or saturating it is definitely a risk for mold to occur.  Mold development can be a very small issue or it can be a Huge Problem.  If Black Sludge starts to appear on top of ground near a foundation, action should be taken.  I have seen extreme mold situations where a home had to be condemned.  Again, this is very rare, but it does happen to good people.
French Drain Trench

Digging trench for French Drain

 

Adding gravel to french drain

Putting limestone on top of french drain

In the pictures below, water was running across the walkway and into the pool every time it rained hard.  We pulled up the necessary stones on the side that the water was coming from and put a French Drain underneath.  A trench liner was utilized as well as a filter around the perforated French Drain Pipe.

Before

French Drain walk way

French Drain Installed along and under walk way to pool.

After

 

walk way french drain

Completed French Drain under walk way

French Drains can be decorative and be made to look nice.  As shown above, they can be placed under walk ways or had designer stones placed on the gravel that fills the French Drain Trench.

Covering a French Drain with dirt is a bad idea.  Water can’t get into the drain through the stones if it is clogged with dirt.  If you are more concerned about how it looks over what it does, then don’t install it in the first place.  French drains can move a lot of water and protect property such as foundations, sidewalks, plants, yards just to mention a few things.  If you don’t like how a French Drain looks then change it.  Put Stepping stones on top of it, use river rock to improve the look, You are limited only by your own creativity.

 

 

FRENCH DRAIN INSTALLED IN LAWTON

Recently we installed a French Drain West of 67th street in Lawton.  Two gutter downspouts were tied directly into the French Drain.

FRENCH DRAIN  CONNECTED TO GUTTERS

Many different types of Drains can be hooked together by one Drain Pipe.  The Drain Pipe  running to an Exit Point makes up a Drainage System.

One common type of Drain used in a Drainage System is A “French Drain.”  Surface Drains, Channel Drains or Sump Pumps can also be used separately or together.

Many times a French Drain is installed close to a building foundation or in a low area next to a home or business.  This puts the French Drain in close proximity to Gutter Down Spouts.

Connecting Gutter to french Drain

Connecting Gutter to French Drain

Rather than have water come off the roof and out the Down Spout and on to the ground below, many times it is much better to tie a Gutter Down Spout Directly into a French Drain or near by Drain Pipe depending on the Drainage System Design.

Connecting The Down Spouts Directly into a French Drain is much  more efficient and causes suction to occur in the French Drain.  Connection of Gutter Down Spouts to a French Drain makes the Drainage System work better.

Connecting Gutter into French Drain System

 

Norman Oklahoma French Drain Installation, Water in Floor Vents and Duct Work.

Recently we installed a 4 inch French Drain with Trench Liner and Pipe Filter In West Norman on Harrogate  Street.  Our customer had a heavy water build up area on the side of her house.  Water would pool up during a rain and sink down into her flower bed.  Once the slab and foundation of the house got very wet, the water would seep into the floor ducts for their Central Heat and Air unit.  This is bad for several reasons.

A wet foundation causes deterioration of the cement.  Cracks can occur leading to all sorts of other problems.

Water In your floor vents promotes mold and all the problems that come with that as well.

Oklahoma Drainage Installed 4 Inch French Drain with trench liner and pipe filter about one foot away from the wall where all the water was standing and penetrating the Duct Work.   The French Drain ran parallel to the house for 60 Feet.  At that point the French Drain transitioned to 4 Inch solid ADS Drain Pipe and continued South an additional 80 feet to a Curb Outlet installed at the street.

We cut the curb and installed a Curb Outlet With Acrylic Concrete to make it look nice and last without chipping.

Along the course of the French Drain, we also connected 2 Gutter Down Spouts Directly into the French Drain..

This provides more efficient movement of the storm water to the exit, but also creates suction in the French Drain behind it.

This is called the “Bernoulli Effect.” If you remember your High School Science Class.

 

Oklahoma Drainage has used these simple concepts  many times to provide a solution to the above problem.

Water still had to be vacuumed out of the Duct Work.  But Future water was and is kept out of the Duct Work and Floor Vents.  Also the Foundation Stays Dry.  No mold or foundation Break Down.

Oklahoma Drainage –  We install French Drains, Channel Drains, Surface Drains, Sump Pumps and Sod.

If You live in Oklahoma City and water damaging your foundation, We can install a French Drain for you.

If you live in Norman and have water standing on your driveway, We can install a Channel Drain for you.

If you live in Edmond and have water flooding your basement, We can install a Sump Pump for you.

If you live in Moore and have water washing out your flower bed mulch, We can install a Surface Drain for you.

If you live in Yukon and need grass to grow we can install Sod too!

 

6 Inch French Drain Installation

Most French Drains are not 6 inch.  The most common size of French Drain Pipe is 4 inch.  Six inch French Drain is necessary when a person has a need for a more Robust French Drain.  It needs to move more water than a regular 4 Inch.

Here are the Potential Sizes of French Drain Pipe for Residential use.

 

First is the 3 Inch French Drain Pipe.  The pipe is small and can’t move much water.  If has become less popular and is harder to find the pipe to install it.  Retailer’s aren’t selling it much any more.

 

Next Obviously is 4 Inch French Drain.  This is larger and moves more water.  It is standard for most Residential French Drain Applications.

Next comes 6 inch French Drain Pipe.  It is noticeably larger than 4 inch.  For Residential use it is more for Flood Protection Rather than Drainage.

Flood protection Means you want no water coming into a particular area.

Drainage Means water Comes into the problem but is drained away over a relatively short time.

Example by Customer:

My customer in Norman Oklahoma had water that would stand on the side of her house after a rain.  The 4 inch French Drain we installed drained away the water in about 15 minutes.

My customer in Chickasha Oklahoma had water Re Directed Into the Garage of her house because the city had replaced a water pipe in the street and changed the slope of her street.  It tore off her garage door and took out the back wall of her garage.  The city fixed the street but also paid me to install a Double 6 inch French Drain (two 6 inch French Drain Pipes Side By Side) to ensure that during a future potential flood the same event would not be repeated.

 

6 Inch French Drain Pipe or 4 Inch French Drain Pipe?

6 Inch moves a lot more water.

6 Inch Pipe is more Expensive.

6 Inch Pipe is more rigid and harder to work with

6 Inch Pipe requires deeper and wider trenches to accommodate the pipe.  A lot more displaced dirt to haul away.

6 Inch French Drains provide much more water movement capacity.  In certain applications it qualifies as “Flood Prevention” rather then just a “Drainage” Classification.

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

 

Oklahoma Drainage 405 203 9419 — We provide:

    French Drain Installation, Surface Drain Installation, Drainage System Installation

Hard rain in Oklahoma is common.  Many homes and businesses have drainage problems. Standing water from storm water run-off  can cause damage to grass, trees and shrubs, not to mention foundations, sidewalks and driveways. Oklahoma Drainage   can design and install a drainage system that may be complex using several types of drains, or basic using just a French Drain or a Surface Drain.  It depends on the customer’s needs.

 

Today we installed a Channel Drain.   It takes a lot of attention to detail.  Channel Drain installation takes several specific steps.  It is a slow process that takes confidence and experience.  I was able to train a couple of our guys on the complete process.  They learned a lot but are nowhere near ready to solo yet.

Installing Channel Drain Across Sidewalk in Norman

Installing Channel Drain Across Sidewalk in Norman

If you live in Central Oklahoma and need a French Drain to protect your home’s foundation, Give us a call.  A French Drain is a great way to keep water away from cement such as a home foundation or driveway.  When water is left standing near a driveway or sidewalk, it can cause deterioration and cracking.  A French Drain is a Good way to keep water away from problem drainage areas.  We also install Surface Drains of most types and sizes depending on our customer’s needs.

Surface Drain Installation in Edmond

Surface Drain Installation in Edmond

We can schedule a free estimate for a drainage system.  A French Drain can be an important part of a Drainage System.  A Drainage System is one or several types of drains connected to an exit point, were the unwanted water is to be released.   A French Drain may be connected to a Surface Drain which in turn may be connected to a gutter down-spout, or Channel Drain.  All the different drains are connected under ground by drain pipe to a Pop-Up Emitter or a Curb fitting to release the water.

What goes into a Drainage System depends on the individual Drainage Problem.  Some Drainage Problems are Simple and need only one type of Drain Connected to an exit point.  Other Drainage problems require  a more complex solution.