Quote:
Originally Posted by rfuerst911sc
Our guest bath has an American Standard one piece toilet and recently has started making a hissing noise. ::::: Should I start by replacing the flapper ?
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Put a bit of food coloring in the tank and check to see if any of it has shown up in the bowl in 30 minutes or so.
It could need a new flapper, or it could be solved by cleaning the flapper and the drain and wiping a small amount of vaseline on the mating surfaces.