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Thread: Vespin partial flush

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    DIY Junior Member Lou33's Avatar
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    Question Vespin partial flush

    Iíve read a couple of review comments noting that the TOTO Vespin toilet (G-Max flush) can achieve a partial flush by depressing the flush handle slightly. Anyone know if this is true of the Vespin II (Double Cyclone flush)

    Lou33

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    DIY Junior Member Spacepod's Avatar
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    Just installed a Vespin II and it seems to have the dual flush feature. Small or 'full' flush.

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    Retired Defense Industry Engineer jadnashua's Avatar
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    To ensure a proper flush, just push the handle all the way down and release. While anything else may initiate a reasonable flush, it is not designed in or intended. Now, since nearly all new toilets do not use the entire tank's worth of water, if for some reason, you feel the need to use more water, you can just hold the handle down until the tank is empty. This is 99x out of a hundred a total waste of water, as the thing works with the designed 'normal' flush volume. If you try to short-circuit this with a partial push, you may likely end up using more water, since you'll need to flush again. IOW, use it as intended.

    Toto does sell dual-flush toilets that produce repeatable, measured flush volumes that do their intended job, they have a two button activation, making it straightforward and reliable - the Vespin isn't one of them...
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

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    Forum Admin, Expert Plumber Terry's Avatar
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    A true dual flush would be something with less then one gallon and a flush with more water.
    Typical dual flush specs would be
    0.8 / 1.60
    0.9 / 1.28

    The Vespin II with cyclone rinse is not a dual flush.
    The Vespin II is 1.28 if you push the handle down and release.
    It's about 2.5 gallons if you hold the handle down and empty the tank. It works fine with the push and release 1.28 though.

    Any bowl that uses 1.28 gallons or less on average is considered a WaterSense bowl.
    In some water districts you may get a rebate for installing one. I've been using the Watersense 1.28 and the Watersense dual flush at home.
    Last edited by Terry; 03-31-2012 at 06:28 PM.

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