Review on 🚽 Korky 2021BP TOTO Toilet Repairs: Large 3-Inch Flapper - Easy Installation - Made in USA - Red (Pack of 1) by Mark Taylor

I have a Toto Soiree' 1.6 Gpf Mod #CST 964CF (same as CST 5453) The OE damper is THU138S or THU175S which is compatible with this KORKY 2021. I have used three of these Korykys in the last 4 years with no leaks. But there is one major problem with the Korky 2021BP. There is not enough water in the tank without a full flush. To a to get full flush you have to hold the lever down until all the water comes out of the tank (5+ seconds) My solution was to seal the side opening dampers with tape using plumber's waterproof tape to cover the hole so the valve can post swim at the bottom instead of sinking fast.But after a few months the tape is leaking and I have to repeat the process.I understand Toto has a new THU500S-Ve Released ntil with adjustable orifice, which solves the fast sinking problem of Toto 3 inch G gravity toilets.