If either one sticks turn the water to the toilet off flush the tank and remove the flush valve canister and replace it.
Toto toilet handle sticks.
This usually happens because the chain is too short.
The handle is very loose on the rod and it s traveling too far down on the flush stroke and getting jammed up and sticking open.
Find toto toilet handles levers at lowe s today.
When the handle is depressed an attached lever lifts a chain or wire connected to the tank flapper.
Toto toilet tank levers find replacement trip levers for your toto toilet replacing your old trip lever is a simple way to keep your toto toilet functioning properly and efficiently so you can continue to rely on it for years to come.
Push the buttons on the flush valve with your finger.
I don t think it s valve related i think it s mechanical with the flush lever.