I think our Toto toilet has a G Max valve in it and it doesn't shut off when the tank is full. The flapper seals fine and the water just runs over the overflow tube. Where can I get a diagram of the valve and does it come apart? Is there a simple fix? Dan
Home - Toto - MS853113S#11 UltraMax Round Toilet, Colonial White
Answers & Comments
If the G-Max valve is not shutting off, just pop a new assembly cap on it.
They are about $2.50 at Lowes.
Even a homeowner can replace the part without tools in less then a minute.