I have a Toto UltraMax with Power-Gravity valve. It's about 3 years old. The flush valve has gone bad - it doesn't stop filling unless you jiggle the valve. So, I think it needs replacing.
Question: the Power Gravity valve looks very similar to pictures I've seen of the GMAX replacement valve. Can I replace the Power Gravity valve w/the GMAX?
Question: the Power Gravity valve looks very similar to pictures I've seen of the GMAX replacement valve. Can I replace the Power Gravity valve w/the GMAX?