Best Practices For Installing An Exterior Drain Tile

Construction & Contractors Blog

To protect your basement from flooding, you may need to install an exterior drain tile system. Water has a natural tendency to flow toward a foundation unless your home is built on a slope. Water is especially likely to pool and flood your basement if you have clay soil. An exterior drain tile will collect water that has seeped into your basement and will carry the water to another location. Unfortunately, a lot of builders will not take the time to install exterior drain tiles; you you may need to install one yourself or hire a professional to install it for you. There are several best practices you will want to follow to achieve the best results.

Place The Exterior Drain Tile On The Side Of The Footer

You will want the exterior drain tile to be installed properly the first time because it can be very difficult and expensive to replace it if something goes wrong, given how deeply the drain tile is buried. The best place to put an exterior drain tile is on the side of the foundation footer. This allows you to lower the water table around your home. The drain tile should be installed shortly after you have removed the footer forms.

Try To Slope The Trench

The trench that you dig for the exterior drain tile must extend to an outlet, such as a pond, ditch or swale. Along the trench bottom, there should be a slope toward the outlet.

Cover The Drain Pipe With Gravel And Backfill

Make sure that the pipe you install is covered with gravel. The gravel should be the same height as the footer. Do not install the exterior drain pipe after the foundation has been poured in if you can because you will have a smaller area to work with. Also, the walls of the foundation can cave in.

You will need to backfill the exterior drain tile. But before doing this, place tar paper or straw over the exterior drain tile. Otherwise, as the backfill is being poured in, particles can be carried into the gravel and this can cause the drain tile to become clogged.

Install A Sump Pump If Necessary

If you are not able to build the drainpipe on a slope that takes it to the intended destination, you will need to install a sump pump that will generate the power necessary to guide the water where it needs to go. However, the extra energy needed to power the pump makes up for the water damage that you will be able to avoid. For more information, go to


11 January 2016

Construction Needs in Times of Disaster

I live in the middle of the desert, so I never thought that flooding would be a problem. However, a few months ago my town was hit with a huge storm. These freak storms are called "Hundred Year Storm" because the chances of them happening are once in a hundred years. Needless to say, no one was prepared for the aftermath--especially not the city sewage system. All this extra water had no where to go, and suddenly, I found my basement flooded. It wasn't a fun experience, but we dealt with it the best we could. Since then, I have spent a lot of time looking into different options for sewage, water lines, and other related things. We're now even looking into building a new house. This blog is the result of my ongoing research.