duclad
New Member
I don't know much about the inner workings of toilets, so please be patient. I have a Toto 1.28 gpf, not sure exactly which model, installation instructions list CST423EF/CST454CEF/CST744EL etc. Anyway, about every week or two, I hear a steady dripping and find that water from the fill valve tube is dripping into the overflow tube. If I flush it, it stops, for a week or so. Also, after the flush, the water level is about an inch below the top of the overflow tube but it gradually creeps up to the very top of the tube. So does the fill valve (Type A) need to be replaced? I'm wondering too about the flush valve - I put food coloring in the tank and after a while it had leaked into the bowl.,,this after first cleaning the flapper, then replacing it and using emery cloth on the opening. So is this all a problem with the fill valve (which no longer is available) or, given that the food coloring gets into the bowl, despite a new flapper, does that indicate the flush valve also is shot? Thanks for any help, hope that was clear enough for diagnostics.