Perimeter/Curtain Drain
Helps with seasonal water table

 

 

Why do I need this you may ask......

A Perimeter Drain is used to lower the seasonal water table in your soil.
Your soil already has to deal with Natures water and now we are going to ask it to deal with yours as well. For your soil to do this adequately we need to give it a little help by installing a drain.

 

 

 

 

A Perimeter Drain encircles the system and a Curtain Drain just shields the uphill sides of the system.
Either drain is pretty critical on design, they are a narrow trench that is dug around the field bed no closer than ten feet to the laterals. They need to be deep enough and have a uniform grade to the trench bottom.
This trench has a perforated pipe laid in the bottom and then the trench is backfilled with aggregate to within 6" of the ground surface. This trench should be at least 24" below the laterals, in 2004 it will be 36" in some soils.

 

 

 

 

 

Our preferred method is using a 4" corrugated roll tile with a woven synthetic sock wrapped around it and we use Spec. #23 sand to backfill with. We use a modified trencher with a mounted Laser receiver to cut the trench

 

 

 

If you have been told of other methods call me and I will discuss each ones advantages/disadvantages and explain why we choose this method.