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Thread: tub fill faucet on a vertical wall

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    DIY Junior Member 69gtocv's Avatar
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    Default tub fill faucet on a vertical wall

    As the title indicates, I'm putting in a jacuzzi tub and would like to have the faucet come from a vertical wall next to the tub and fill the tub that way instead of having it mounted to the flat tub flange or the platform next to it. Do they make such a faucet, didn't see any at the box stores tonight.

    Jeff

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    Retired Defense Industry Engineer jadnashua's Avatar
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    Use a standard tub filler, and get a long(er) spout. You can find both single handle and dual handle tub valves. Most of the two handle ones are thermostatically controlled (which I like, but cost more) verses a pressure balanced one. While a 1/2" valve will work, to fill the tub faster (if your supply lines can be 3/4"), go with a 3/4" valve. Expect a 1/2" valve to provide about 6-8 gpm (depending on how hot the WH is set - higher, means mixing more cold, which increases the total volume), while a 3/4" valve can provide over twice that flow (if the pipes are big enough).
    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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    DIY Junior Member 69gtocv's Avatar
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    Jim, I take it a longer spout is an option on a standard tub faucet then? I'll have to do some research. I haven't started my supply lines yet but am probably going with a Pex based manifold and doing a home run layout. Looking at the Manabloc instructions, they sugguest using a 1/2" manifold and continue that size for the high volume fixtures like the tub/shower/clothes washer and reducing down to 3/8" for the other fixtures. They claim upsizing beyond that just increases the wait time for hot water to arrive. Your thoughts?

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    Plumber jimbo's Avatar
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    How many gallons in your jacuzzi tub? If it's 50 gallons, and you limit yourself to 4 gallons per minute, for example, it will take 12+ minutes to fill it. By the way, have you analyzed the hot water supply necessary to fill a large tub?

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    Retired Defense Industry Engineer jadnashua's Avatar
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    You can put the valve anywhere. You could put the spout on the ledge of the tub, or on the wall. There are some that have a long reach and some that come out as a waterfall. For filling a large tub, I'd want at least 3/4" pex or maybe even 1", then reduce to a (preferably) 3/4" valve. If the supply lines into the house aren't at least 3/4" copper (and preferably more that goes all the way to and through the WH), you'll be dissapointed in the fill time. While 1/2" pex to the tub would work, the gpm would be moderately low. The ID of pex is smaller than copper, so 1/2" pex can flow less than 1/2" copper. Not a problem for most things, but a multi-head shower, large tub, outside hoses, etc., anywhere where you want max flow, you may be dissapointed with 1/2". 3/8 to a vanity sink is probably fine, since those valves are flow-restricted anyways, but not a tub filler.

    Yes, larger pipes will take longer to purge of cooled off water, but you also have the option of recirculation, and then the delay is non-existent (or at least small).
    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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