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            DIY Message Boards  Hop To Forum Categories  Home Improvement  Hop To Forums  Plumbing    Tub hot looses pressure; cold fine; sink hot/cold fine
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        Tub hot looses pressure; cold fine; sink hot/cold fine Sign In/Join 
        posted
        Had dripping tub (water was warm). Planned to replace washers and discovered handles were stuck. Decided to replace entire set (central brass). Set was too small so got the needed parts individually. Seats went in fine. Stems went well too. However, turning on the hot has an odd behavior:

        -- starts strong then pressure slowly reduces (down to a trickle).
        -- opening faucet helps, but pressure reduces again
        -- opening up more helps take bath or shower
        -- NOT an issue with cold however

        Steps to fix:
        -- check for debris (removed stem - found nothing)
        -- replace stem (issue still the same)

        Ideas?

        Brian
         
        Posts: 3 | Registered: Mar 30, 2014Reply With QuoteReport This Post
        Picture of Jaybee
        posted Hide Post
        Check to see if you have a similar high beginning pressure that quickly tapers off in any of your other hot faucets. The longer you have pressure indicates a problem further down the line. If you have other hot faucets with similar symptoms, that tends to confirm the problem is farther away from the faucets.

        Most likely place would be at the water heater and the lines going in or out.

        However, if the tub is the only hot faucet with this problem, then the problem will be closer to it.


        Jaybee
         
        Posts: 10452 | Location: Knoxville, Tennessee | Registered: Sep 27, 2003Reply With QuoteReport This Post
        posted Hide Post
        Pressure everywhere else is fine... Even in the same bathroom (the sink next to the tub). Other thoughts?
         
        Posts: 3 | Registered: Mar 30, 2014Reply With QuoteReport This Post
        posted Hide Post
        probably there is a little loose piece of... something... in the fixture on the hot side.

        what pipe do you have? if it's galvanized iron, you probably kicked a piece of clotted crud loose, and it's telegraphing that the line is full of junk. if so, replace it all. ALL! bwa-ha-ha-haaaaaa! seriously, deposits need to go someplace, and if you replace one section, the crud will plate out on all the rest of the pipe. it will basically clog completely.


        sig: if this is a new economy, how come they still want my old-fashioned money?
         
        Posts: 5832 | Location: North Burbs, MN | Registered: Mar 14, 2007Reply With QuoteReport This Post
        Picture of Jaybee
        posted Hide Post
        Yup, just about has to be something caught up in the new faucet.


        Jaybee
         
        Posts: 10452 | Location: Knoxville, Tennessee | Registered: Sep 27, 2003Reply With QuoteReport This Post
        posted Hide Post
        Yesterdays "ask this old house " addressed just that problem. If you can still get it on a rerun it would pay to see it
         
        Posts: 2581 | Location: florida | Registered: Sep 27, 2003Reply With QuoteReport This Post
        posted Hide Post
        one way to try and deal with it is to crank down the hot water shutoff, remove the stem of that shower valve, hold a bucket by the stem, and crank open that hot water shutoff. if the crud comes out, you can catch it in a strainer and see what it is. be prepared for a deluge Wink and this is hot water, so take sensible precautions and don't blow more than a bucket full out.

        This message has been edited. Last edited by: swschrad,


        sig: if this is a new economy, how come they still want my old-fashioned money?
         
        Posts: 5832 | Location: North Burbs, MN | Registered: Mar 14, 2007Reply With QuoteReport This Post
        posted Hide Post
        Solved! The "Danco" brand stem was the problem! Got a Central Brass stem from a local plumbing store and the hot works great now!! Thank you everyone for your help.
         
        Posts: 3 | Registered: Mar 30, 2014Reply With QuoteReport This Post
        Picture of CommonwealthSparky
        posted Hide Post
        quote:
        Originally posted by nona:
        Yesterdays "ask this old house " addressed just that problem. If you can still get it on a rerun it would pay to see it


        Saw that episode nona. Rich Thathewy and his issues with plumbing are an education to watch. Poor guy is always climbing about in close quarters and working up a sweat.


        Popeye only reached for the Spinach can as a last resort...
         
        Posts: 1550 | Location: Central Pennsylvania | Registered: Jun 02, 2010Reply With QuoteReport This Post
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