G ghildebrandt New Member Joined Mar 21, 2013 Messages 3 Reaction score 1 Location , Dec 4, 2014 #1 I would like to install a backwater valve in a 4-inch cast iron sewer pipe. I would like to know the the top of the line valve to use for this. Any help would be most appreciated.
I would like to install a backwater valve in a 4-inch cast iron sewer pipe. I would like to know the the top of the line valve to use for this. Any help would be most appreciated.