installed easy, first I flushed it hardly any water in bowl , flushed couple of times still hardly any water in bowl , so I remove tank lid adjust water valve screw still same thing low water in bowl then I see the problem the water hose is kinked it's made TOO LONG so I cut 1 1/2 inch off the hose hooked it back up works GREAT NOW no problems just a simple fix !!

Cons: make sure the black water hose isn't kinked.