I learned about water berms from a contractor several years ago. We hired them to reconstruct an old parking lot. The lot was all paved and most of it was hilly. I require extruded asphalt curbing be used to keep clean water out and dirty water inside the project. The contractor asked me if they could use water-filled berms instead. I wanted to see how they worked and agreed. They worked great so we have added this to our BMP toolbox. These are heavy PVC tubes that can be reused many times, if not abused. I can’t remember where they got these but similar ones are used in spill control. One of the suppliers I know of is: NEWPIG.COM.
