I received your e mail Otto will also confirm that water pressure will walk under plastic and poly is not a water freindly product I could tell You all the water problems with this but I do not want to get a severe edit there might be a sponsor selling plastic I would ask Mr Bob
Good Luck

Last edited by Scott Trava; 08/13/08 06:50 PM.

Scott Trava
Catskill Pond
http://catskillpond.com
scott@catskillpond.com
Returning Catskill Waters To A Simpler Time
EST. 1923