Quote:
Originally Posted by Bill14564
You probably have a black cylinder. This is a Kohler design. The cylinder lifts to flush and it’s likely that the gasket on the bottom of the cylinder needs to be replaced. Plenty of YouTube videos - very easy. Get a Kohler replacement gasket at a hardware store and do it yourself. (the knockoff gaskets don’t last long at all)
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I contacted Kohler. Same exact issue. I removed gasket and there was a slight bubble in the gasket. I took photos and sent them to Kohler. They sent me replacement gaskets. No problems since new gasket in (1.5 years). Initial one lasted 6 months. Super easy to troubleshoot and replace.I have 3 toilets. They gave me several.