history behind this spout

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by Dustinthewind, Apr 7, 2014.

  1. Dustinthewind

    Dustinthewind New Member

    Mar 25, 2014
    ft.worth t.x.
    Hello. I was curious if anyone had some history behind this spout and diverter.

    Last edited by a moderator: Apr 8, 2014
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    Those spouts today are illegal to install as the outlet of the spout must be above the flood plane of the tub. From a practical standpoint, when that was installed, a deep hot soak in the tub was generally not done, so the fact the spout is that low isn't an issue. We've learned a lot since those times. One of the plumbers may have more insight on why, and when they stopped doing it that way.
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  4. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    When the tub was installed,in the 20s and 30s, there was NO diverter. The diverter was part of a remodel. Originally, there were 3 knobs on the wall but the middle one operated the drain fitting, which is what that handle below the current valve does. The drain is what is called an "indirect overflow" because the water in the tub fills the overflow tube until it reaches the top of the center "plug"" and flows over its top down and down the drain. Once they designed the overflow that way, they did not need an opening for it in the tub. Initially, as in your tub, the spout was installed to fill that hole but, in some cases the spout opening is about 6" above the bottom of the tub which would make it impractical to use as an overflow. They became "illegal" as soon as engineers realized that if the tub was filling, and the spout was under water, it would drain out through the water lines if the building water supply was turned off.

    MASTERPLUMB777 In the Trades

    Aug 6, 2007
    Retired Master Plumber
    That is why all faucet spouts of what ever kind "ALWAYS" have to be above the flood level rim
    of the fixture they serve to prevent back siphon from bringing dirty water back into fresh drinking water what plumbers call potable water !
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