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Hi Joe-
A common issue I have found is buying a bulkhead that can span the wall thickness. The ponds I have built in the past have always been framed with 1 1/2 inch thick wood. So, the bulkhead has to have a neck approx. 2 inches long.
There can also be some discussion on the use of gaskets. If you are using a liner, example EDPM- do you need a gasket? Does the liner serve as the gasket? There is a lubricant that works good to keep the liner from twisting when the bulkhead is tightened. I don't have the name of it on me.
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Mike Pfeffer
Northern Midwest ZNA show
June 21 - 22, 2008
Indiana State Fairgrounds
Indianapolis, IN
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