(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 5 of 5

Thread: Sweating lines,prep draining,concrete slab.

  1. #1

    Question Sweating lines,prep draining,concrete slab.

    Installing new sink& vanity. When line is coming up through slab, what is best way to drain water? Also there is a mixing valve supplying hot or cold water to toilet. Are these valves still used?Local Home Center no help on valve.Thanks

  2. #2
    Plumber jimbo's Avatar
    Join Date
    Aug 2004
    Location
    San Diego
    Posts
    9,001

    Default

    If there is slope away from the house, attach a garden hose to a bibb; open a few COLD taps in the house ( keep the hots closed) and open the bibb after shutting off the main valve. When working on a low section like you may be, you might even need to use a shop vac to either suck or blow the pipes down.

    Sounds like you have a tempering valve on the toilet. These are used if you live in a cold climate. The water entering the toilet is so cold, warm moist air inside the bathroom condenses on the cold porcelain tank and drips onto the floor. By mixing the toilet supply to a moderate temperature, this problem is eliminated.

    A tempering valve is a common plumbing supply item, but is not likely to be found at a box store. Any plumbing supply house will have it.

  3. #3
    General Contractor Carpenter toolaholic's Avatar
    Join Date
    Jul 2005
    Location
    Marin Co. Ca.
    Posts
    829

    Default Question Jimbo

    when doing repairs on copper ,i usually open all house faucets and hose bibbs. will i get better results with cold open and hot closed?

    Thank's Tool

  4. #4
    Plumber jimbo's Avatar
    Join Date
    Aug 2004
    Location
    San Diego
    Posts
    9,001

    Default

    If you open any hots, you tend to siphon the water heater, which can take longer and may never end!

  5. #5
    General Contractor Carpenter toolaholic's Avatar
    Join Date
    Jul 2005
    Location
    Marin Co. Ca.
    Posts
    829

    Thumbs up thank's

    will do this in future Jim

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •