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thezoomies OP t1_itrxcbv wrote

Not since I did the work, but we have in the past before I knew that they could damage tank parts.

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dracogiraffa t1_itsb5y9 wrote

Hard water and bleach could destroy the silicone or rubber in the flappers enough that it could trickle into the bowl. If the flapper is brand new take a closer look at the O rings too.

1

thezoomies OP t1_itsiv3r wrote

O-rings where exactly? Like, in the flush valve?

1