French Drain, DIY, Installation, Drainage System Release Water, Curb Outlet, Pop Up Emitter -Part 5 –

Posted: February 15, 2020 in DIY Drain Installation, DIY French Drain, Drain Installation, french drain
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Before you ever build a Drainage System,  you need to decide where you are going to take the problem water too.   Most residential Drainage Systems release water farther on down the hill, or release it out into the street.  Street release is either over the curb or through the curb.

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It is a good idea to do a little research on the effects and liabilities of releasing water at your home.  What does the city think if you release water through the curb vs over the curb?  What does your downhill neighbor think if you are releasing water into his yard?

Some Drainage System Locations have many options for ” Exits.”  Others have vary few.

Don’t Start a Drainage System if you don’t have a good place for the water to exit!

This is even more important, if your Drainage System needs to be a “Flood Prevention System.”  We talked about this in the previous blogs on Drainage.

A Flood Prevention System may need more than one exit to increase the Drainage Systems Capacity.

Replacing Sod after install

Putting the sod back after drain install

OK, So you have a good Water Exit Strategy and have identified where the water is going to go.

Lets go back and talk about Pop Up Emitters and Curb Outlets.

A Pop Up emitter is used to release water down a hill or over a curb and into the street.

Pop up emitter next to sidewalk

Popup Emitter to release water from a French Drain in Yukon

new curb outlet

Curb outlet with more than 6 inches of fall

 

Pop up emitter and ADS

Pop-Up Emitter before Installation

Water hits the Emitter and fills it until the water pressure lifts the lid and the water drains out.

Good “Fall” or ” Slope” is necessary for a pop up emitter to work properly.  Many times a Drainage Pipe does not run down hill enough for a Drainage System to work well. You need “Slope” for your drain to work.   Water may move very slowly and never lift the lid and it just sits there.

We will talk about having the correct amount of “Fall” or “Slope” in a Drainage System in the next blog.

Curb fittings or outlets is the other way to release water.

 

cement curb outlet

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

First off,  For your average DIY Guy.  Installing a Curb outlet may be beyond your skill set or capacity.  If that is the case just place a Pop Up Emitter up against the curb and go on about your business.

That being said, you may still want or need a Curb Outlet set in concrete.

If you are good with concrete and a concrete saw, this option poses no problem.  If this option seems too much for you, it probably is!  Consider sub contracting the curb outlet.  In higher populated areas, finding someone to do “Light” concrete work is relatively easy.  You sill can save money by installing the rest of the Drainage System yourself.

If you are sill going to install the “Curb Outlet,” here are the steps for a “First Timer.”

Step 1  Find a Curb outlet fitting.  They are round on one side where the drain pipe connects and rectangular on the other to fit in the cut out area for the Curb outlet.

Curb outlet fitting

Curb outlet fitting

They are sold in many Drainage Supply Businesses.  You may not find them at “Lowes” or ” Home Depot”.  It varies.  If a Specialized Drain Supply business is not available then use a “Heat and Air” Floor vent as your curb outlet.  They are made of metal in most cases but still will work very well.  I have done this many times.  The floor vent is typically wider and thinner than a standard Curb Outlet Fitting.  Just cut a wider hole in the curb.

Step 2 Watch an instructional safety video on using a concrete saw.

Step 3 Rent or buy a concrete saw.  A used one can be found in pawn shops for about 300$ to 600$.  A New one will run around a Thousand Dollars.

a Rental will run about 50$ to 150$ depending on your area.

Step 4  Find a Curb outlet that matches the size of your Pipe.  If you have a 4 inch Drain pipe then install a 4 inch curb outlet.   Sometimes a Six inch Curb outlet is too big to install in many roadside curbs.  It is too tall in many cases.  In most situations if you want a curb outlet and have a Six inch Drain Pipe, you must install two 4 inch outlets side by side.

If you have the need for a six inch Drain Pipe,  that means you have a lot of water to move.  You don’t want to create a bottle neck at the curb by installing a 4 inch curb fitting as your exit on a Six Inch Drain Pipe.

What you need to do is dig a large hole at the curb so you have room to work.  Next you attach a 6 inch “Y” fitting onto your drain pipe above the curb several feet.  You then install Two Reducer Bushings in both outlets of the “Y” fitting.  Next you attach 4 Inch ADS Drain Pipe to the outlets and run two 4 inch ADS Drain pipes to the Curb.  Now you install two 4 inch curb fittings side by side.

It is very important to use ADS Pipe coming out of the 6 Inch “Y” fitting.  It is Flexible and can be easily bent to fit your application.   PVc Pipe is rigid and won’t bend.  Very few people can do this process using PVC.  In 26 Years of installing Drains, I have only done it 3 times using PVc.  It is very Difficult and Frustrating.

Step 5 Watch a Video on Light Concrete Work if available.

Step 6 Connect the curb fitting to the drain pipe and install cement around it.  I have had the most success using a ” Quick Set” concrete that comes in a small bucket and has an “Acrylic” Additive or Base.

I don’t recommend cutting the curb yourself and installing a curb outlet if you are only going to do this once in your life.  If you are are or will become a drainage contractor, then this is a skill that you definitely need.

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Comments
  1. […] French Drain, DIY, Installation, Drainage System Release Water, Curb Outlet, Pop Up Emitter February 15, 2020Before you ever build a Drainage System,  you need to decide where you are going to take the problem water too.   Most residential Drainage Systems release water farther on down the hill, or release it out into the street.  Street release is either over the curb or through the curb. Previous Blog        […] blanecallen […]

  2. […] French Drain, DIY, Installation, Drainage System Release Water, Curb Outlet, Pop Up Emitter February 15, 2020Before you ever build a Drainage System,  you need to decide where you are going to take the problem water too.   Most residential Drainage Systems release water farther on down the hill, or release it out into the street.  Street release is either over the curb or through the curb. Previous Blog        […] blanecallen […]

  3. […] back yard in two places, then it connected to solid ADS Drain Pipe and Ran to the street where a Curb Outlet was […]

  4. […] back yard in two places, then it connected to solid ADS Drain Pipe and Ran to the street where a Curb Outlet was […]

  5. […] 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 […]

  6. […] back yard in two places, then it connected to solid ADS Drain Pipe and Ran to the street where a Curb Outlet was […]

  7. […] back yard in two places, then it connected to solid ADS Drain Pipe and Ran to the street where a Curb Outlet was […]

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