Hot/cold water conundrum

Discussion in 'Bad Dog Cafe' started by RLee77, Apr 13, 2019.

  1. RLee77

    RLee77 Friend of Leo's

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    I recently moved into a new (to me) house in Reno. It’s appointed very nicely, high quality fixtures, great construction throughout. But several of the sinks exhibit very weird and inexplicable behavior when attempting to adjust the hot & cold water temp.
    I’ll start the hot water running with the left knob, it of course starts out very cold, and wait (a long time, but that’s understandable, it’s quite far from the water heater) until the water gets suitably hot. Then, I’ll try mixing in some cold from the right knob, and the water stays hot — really hot. In fact if I turn the hot completely off, the “cold” water stays just as hot... for a LONG time. Nearly as long as I had to wait for the hot to begin with. WTH? It seems like the longer I let the hot run, the more it negates my ability to get cold water. If I just run hot for a few seconds, then the cold water responds much faster.

    Looking under the sink, I see a suspicious gadget with the incoming hot/cold water lines attached (the big hoses), along with two outgoing lines feeding the sink’s hot/cold valves (smaller hoses). I’m guessing this mysterious widget is the culprit. What the heck is it? Is it broken, or is its purpose in life to prevent me from ever getting the water temp I want?

    F2ADDC98-7E3A-48C4-B4C6-BDD98B27F2EC.jpeg
     
    Last edited: Apr 13, 2019
  2. Chunkocaster

    Chunkocaster Poster Extraordinaire

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    There should be two separate lines. Maybe that contraption is to stop the lines knocking or to isolate all water supply to the sink taps?
    I would route the cold feed directly to the cold tap and vice versa for the hot. Place a separate tap on each to isolate if needed. I would also seal that particle/chip board with something to stop it rotting from any moisture. If a leak appears around those hoses that board will swell up like a balloon and rot away after stinking the place up for a while.

    Try turning that black tap at the bottom of the doohickey. It might adjust the mix of hot and cold to each tap.
     
    Last edited: Apr 13, 2019
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  3. notmyusualuserid

    notmyusualuserid Friend of Leo's

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    You've got a hot and cold mixer valve under the sink as well as mixer taps (faucet) on the sink? Why? :)

    What is this flexible hose connected to BTW? It seems to go nowhere.

    [​IMG]
     
    Last edited: Apr 13, 2019
  4. Chunkocaster

    Chunkocaster Poster Extraordinaire

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    That looks like a feed for cold or hot. The line next to it running into the top of the contraption would be the other feed. Those two lines could be routed directly to the taps after enlarging the attachment nut threads via small independent taps. Then that contraption could be tossed in the bin.
     
    Last edited: Apr 13, 2019
  5. drf64

    drf64 Poster Extraordinaire

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    Motorcyclists love to rant about the weird hacks the previous owners (PO) of their bikes did. Forums are filled with photos of inexplicable hacks and unneeded fixes. Surely there must be a home owner's version somewhere on the interwebs?
     
  6. Old Deaf Roadie

    Old Deaf Roadie Tele-Afflicted Silver Supporter

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    I am guessing, and it is purely a guess because I am a tech & not a plumber, that the device is there to help justify the marketing that a previous homeowner fell for. I am also guessing that if you remove the device & plumb the lines direct to the faucet, everything will return to normal.
     
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  7. Piggy Stu

    Piggy Stu Friend of Leo's

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    You can choose between sorcery or ghosts, but it is def paranormal

    Who you gonna call?
     
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  8. notmyusualuserid

    notmyusualuserid Friend of Leo's

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    A plumber?

    :)
     
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  9. Piggy Stu

    Piggy Stu Friend of Leo's

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    250px-Scooby-gang-1969.jpg 250px-Scooby-gang-1969.jpg
     
  10. Boubou

    Boubou Doctor of Teleocity Gold Supporter

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    Wtf.
    Rip that krap off.
     
    Last edited: Apr 13, 2019
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  11. stxrus

    stxrus Friend of Leo's

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    What a kluge of idiotic plumbing
    Remove all of that mess. Get rid of the “stainless” supply lines. Flexible nylon is better
    Run a single supply line from each angle stop to the faucet’s intakes. Hot on the left - cold on the right
     
  12. trev333

    trev333 Telefied Ad Free Member

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    That'd be the, errr? the Medusa valve, I reckon...o_O:D
     
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  13. P Thought

    P Thought Poster Extraordinaire Ad Free Member

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    jeepers
     
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  14. Tele-beeb

    Tele-beeb Friend of Leo's

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    Another thing to add to the TDPRI Lessons Learned:
    Never mix new plumbing with old plumbing.
    In other words, if I put in a new sink, I throw out the old, then it gets all new works to the source.
     
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  15. jackal

    jackal Tele-Afflicted Gold Supporter

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    Check to see if there is a weird looking timing device attached to your hot water heater. There is a device that speeds up the hot water delivery to your far away faucets. When they go bad, strange things can happen. When mine failed, I got warm water at all times from the cold taps. I just turned the timer off. Simple flick of the switch.
     
  16. Piggy Stu

    Piggy Stu Friend of Leo's

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    Can someone who knows more than me explain the 4 way giraffe thing's purpose in normal life? Who wants that happening, ever?
     
  17. Blrfl

    Blrfl Tele-Holic

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    It's a valve that's part of a recirculating hot water system. You use it when the sinks are far enough away from the hot water heater that it takes forever to get hot water. Retrofit systems use the cold water line to get unused warm water back to the heater. Sounds like this one has a problem, either a failed valve somewhere or the pump isn't running.
     
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  18. Mike Eskimo

    Mike Eskimo Telefied Ad Free Member

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    I’m not going to say how I know , but someone who knows less than me installed all of that...stuff.

    Everyone has their favorite supply line material. :rolleyes:
    The best one? Straightest route and no leaks.
     
  19. Piggy Stu

    Piggy Stu Friend of Leo's

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    I have made some ugly stuff like this in my life when fitting taps on a saturday night and can only reattach everything using inches and metrics and couplings left over in my garage
     
  20. telleutelleme

    telleutelleme Doctor of Teleocity Silver Supporter

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    Well you know what tool is required to remove it. The "Thingy".

    tool_image.jpg

    Also there is a guy called Bob on the label, call him.

    :rolleyes:

    Is it possibly a closed off line for a dish sprayer that wasn't used?
     
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