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Filter Backwash Valve Leaking or Stiff -Replacing the Stem O-rings
YouTube Video Index – A list of all of my videos:http://poolmandave.blogspot.com/2014/03/swimming-pool-tips-reviews-how-to-video.html
In this video I show you how to fix a leaking or stiff push/pull backwash valve commonly found on most D.E. and some Sand filters. The hardest part is removing the piston as the o-rings tend to expand with age and lock the piston in the valve - making it difficult to pull it out on occasion.
I usually will orde...