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Thread: Pressure Assist Toilet Retrofit???

  1. #1

    Default Pressure Assist Toilet Retrofit???

    I'm looking for a kit that will convert my old toilet to a pressure-assist, but the flushmate and pf2 says they won't retrofit to gravity toilets. Is there some physics that says this can't happen? I suppose the manufacturers would rather sell you a whole new toilet than a conversion kit. Does anyone know if there is a drop-in kit out there?

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
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    Pressure assist won't make a poorly performing toilet work better. The waterways are different, in theory at least, so retrofit is a pot shot at best, and unlikely to work if you could find the parts.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3

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    Although this may be possible it is doubtful it would work. Those pressure tanks blow the water out at a very quick speed and you'd most likely have water shooting up out of the toilet if it wasn't properly designed. My old Gerber Powerflush is bad enough with just the spray that I usually close the lid before I flush it.

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    Plumber Cass's Avatar
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    You will be waisting time and $$$

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    Plumber jimbo's Avatar
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    From the Sloan Flushmate website: "The FLUSHMATEŽ Pressure-Assist system is a component inside of a specially designed toilet that harnesses the pressure from the water supply line to provide the energy needed to complete the flush. The FLUSHMATEŽ Pressure-Assist technology cannot be retrofitted into a standard, gravity-fed toilet."

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    Forum Admin, Expert Plumber Terry's Avatar
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    I did see a pressure assist tank installed on an old 5.0 gallon bowl.
    It did not flush, it only stirred the water.

    A 1.5 gallon flush needs a matching 1.5 gallon bowl.

    Besides, you can get pretty much the same result with a good Gravity tank and bowl. Those have to be matching too.

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    Master Plumber Redwood's Avatar
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    I have replaced many of the early "Kohlers own" pressure assisted toilets in commercial applications with gravity flush Toto Drake Toilets with no complaints. In somecases The owner or manager has called me to install them in their own house... Whats not to like about a toilet that works good?

  8. #8
    DIY Senior Member Joerg's Avatar
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    Also, one should note that pressure-assist toilets are extremely loud. The classical flushing sound at 704 Houser Street (Archie Bunker) is nothing compared to a pressure-assist. I wish there was a trick to quiet them down a bit.

    Regards, Joerg.

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