BostonGuido
New Member
I have two 2016 Kohler toilets, labeled 1.28 GPF. They have the falling-float-on-a-stem style flush valve. They work fine and are properly adjusted. But they use about 2.5 GPF. Any ideas why this would be and if I can fix it? I want to reduce my water usage since I have a rain water cistern for all water needs. Is the "1.28" just marketing crap or are they really supposed to use this amount? It that the lowest possible adjustment for the flush valve, perhaps?
Thanks!
Thanks!