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Thread: Toto: Replace Power Gravity valve with G-Max?

  1. #1
    DIY Junior Member
    Join Date
    Nov 2006

    Question Toto: Replace Power Gravity valve with G-Max?

    Hi, We have had 2 Toto toilets for about 6 years -- Carusoe Gravity and Ultimate Power Gravity. We have had no trouble at all with the Carusoe, but we have had to replace the fill valve 2 times on the Ultimate Power Gravity and it is now time to replace it again. About half way through the fill cycle it starts to whistle and hiss-hiss-hiss; psst-ppsst-ppsstt; all while spraying a jet of water out the slots in the top of the valve. While doing a search for a replacement TSUO4A.5 Toto Power Gravity Fill Value, I stumbled across some information that seemed to indicate I could replace the Power Gravity valve with the G-Max fill valve because they are the same size (3"). Is this really a viable option? Is the G-Max valve be a longer lasting valve than the Power Gravity one? If this is something you would recommend, will you please provide information to find a replacement G-Max fill valve (like the part no.)? Thanks!

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Bothell, Washington
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    Korky makes the fill valves,
    Here are instructions below

    Last edited by Terry; 11-07-2013 at 02:17 PM.


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