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  1. S

    Help with Gerber toilet flapper or flush valve leak

    Jeff, great info. Thanks for your reply. I think I’ve got it solved. Turns out the leak was actually coming from the large black gasket that seals the tank to the bowl. My first time ever doing any of this and when I took the tank off that gasket stayed stuck to the bowl so I didn’t even...
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    Help with Gerber toilet flapper or flush valve leak

    I replaced my flush valve but now I’ve got a new problem. My left side (as I’m looking at the tank, one closest to fill valve) tank bolt/rubber gasket is leaking. The bolt has a rubber gasket inside the tank and nothing on the underside/outside...just a white plastic nut. I went to the...
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    Help with Gerber toilet flapper or flush valve leak

    Jeff, thanks for the information. Sorry, I mis-typed my tank number. You're correct in that it is #28-595, not 28-559 as I wrote in my original post. I'll take your suggestions and give them a try. Thanks again.
  4. S

    Help with Gerber toilet flapper or flush valve leak

    Guys, thank you for your replies. Good info. I used a scrub brush to clean the seat of the flush valve per your suggestion. Afterwards I ran my finger around the seat and it feels smooth. I then tried both my old flapper and new flapper (both same part #) and both continued to leak. I can hear...
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    Help with Gerber toilet flapper or flush valve leak

    I've got a 10 year old Gerber toilet. Toilet Model # 21-552. Tank Model # 28-559, 10" rough in, 1.6gpf. It takes Flapper part # G0099647. I verified these numbers with Gerber customer care and a couple online parts places. Approx. 5 years ago I replaced the flappers on all three toilets in my...
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