January 2013: Tech Section – Difference between drainage envelope and drainage filter

Posted on January 29, 2013February 14, 2022Categories TECHNICALTags , , , ,

One of the most commonly asked questions we receive is, “Isn’t the filter fabric (geotextile used around Turf Drain and Perma Basins) going to clog up?” In the early 80’s, when we first introduced Turf Drain to the golf course industry, I called on golf course architect, Joe Finger in Houston. Joe was a civil engineer. As soon as I showed him the Turf Drain and explained how it worked, he said, “I have never seen a filter yet that didn’t clog up and have to be replaced.” I wasn’t able to counter his statement, but as soon as I left his office, I started my search for the explanation. Since that time, I have spent untold man-hours trying to

Fall 2012: Tech Section – Cardinal Rule #1: Proper seepage drainage must have an adequate airspace

Posted on August 17, 2012February 14, 2022Categories TECHNICALTags , , , , ,


Cardinal Rule #1: Proper seepage drainage must have an adequate airspace

If we could only explain one principle to improve people’s understanding of proper seepage drainage, it would be that proper seepage drainage must have an adequate airspace to drain to in order to be effective. If a person absolutely understood this one critical concept, 90% of failed drainage installations would be eliminated. Hardly a day goes by that we don’t have some type of discussion with a golf course superintendent, engineer, or golf course architect whereby it is obvious that cardinal rule #1 is either not truly understood, or is underestimated in its importance.

The basis of all seepage engineering is a formula for the proper design of