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  • Plumbing a shop in freeze regions

    What do you do to keep your plumbing from freezing?
    I know you run from the house in a trench below the frost line but what about when you bring the line up from the trench through the slab? Any plumbing I have seen here is done via the basement which comes into a warm space well below the frost line.

  • #2
    Typically the underground piping is placed below the frost line. It enters the building underground and rises up in an interior wall or, as you mentioned, a heated basement. I have also used "heat wrap" on pipes that were required to be exterior and above ground or located withing a freezer. This is basically an insulating tape that uses a small electric current to keep the pipe warm.
    the dog

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    • #3
      wayne, you're in canada where it tends to snow, and dog and i are in southern calif. where we need air conditioning.

      i double that. go with the heat tape tracer wire. these come in certain watts per foot. some have built in thermostats and some you can wire to a thermostat.

      how do we keep sun block out of our eyes.

      rick.
      phoebe it is

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      • #4
        my house is on a slab and the water line comes in below the freeze line and in to the house about 2ft in from the footer . there is a 12x12 pit in a closet ,and then goes to the water meter and then up into the house . this pit does not below 40 deg. you can do the same thing as long as you keep the pit open with a cover with holes in it to let some heat in . may i suggest using pvc or pex type pipe under ground .
        Charlie

        My seek the peek fundraiser page
        http://observatory.mountwashington.o...nal&fr_id=1040


        http://www.mountwashington.org/weather/conditions.php

        new work pictures 12/09
        http://public.fotki.com/hvachawk/

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        • #5
          The footing under your slab should be at least 6 inches below the known deepest frost line for your area. this not only provides stability for your structure it keeps the ground under your slab above freezing. So long as the incoming waterline is below the frost line and it comes inside the home away from an area where it would be subject to freezing (no outside walls) your service should never freeze. Your waterline branches inside the building should also be kept out of outside walls. drainlines should have no insulation between them and the inside of the house. Keep all insulation behind them on the outside of the building.

          When a waterline must be brought up in an area where freezing temperatures may occur (unheated crawl spaces) then an electrical heat trace and insulation is required. Follow the heat trace instructions closely or you may create a dangerous fire hazzard.
          Work hard, Play hard, Sleep easy.

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          • #6
            Question for Plumber and others who live in freeze areas:


            How do you handle the hose bibs? I was able to answer most of that question because Southern California includes alot of freeze areas. Our desert and mountain areas, within an hours drive of LA, qualify. I haven't done alot of this, but I have done it.

            So I'm just looking for info.
            the dog

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            • #7
              Dog: Where I live it has dropped to 50 below zero. We use either a frostproof hosebib (a bib with about a foot long extension that has the shut off inside the building or we use a stop and waste inside the building and shut off the bib for the winter. HTH Jim

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              • #8
                Plumbdog,

                Pipestone is correct about frostproof sillcocks. They are also installed at a pitch so that when the water is turned off all of the water drains from the cock preventing a freeze up.

                There are two major reasons these fail, either they are installed improperly so they cannot drain themselves or people unfamiliar with them keep turning the handle tighter and tighter because they think the water draining out means the valve is not off. they ruin their sillcocks this way.

                In Illinois they must also have an integral vaccuum breaker with accepted approval markings from approved certification agencys such as ASSE or USC stamped into the device.

                Also a non removable scew on type vaccuum breaker may be installed on the threads of a non approved cock so long as these also have an approval marking stamped into the device.

                The stop and waste method has not been used around where I am for at least 15 years. Though I have that set up for a garage that is fed from my home and that sits about 20 feet below my house.
                Work hard, Play hard, Sleep easy.

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                • #9
                  Thanks Plumber & Pipestone Kid,

                  I've roughed-in and installed fire-hydrants that work on the same principal, but never a hose bib.
                  the dog

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                  • #10
                    the frost proof hose bib is only good from not freezing if you remove the hose after your done so the water can drain out.
                    Charlie

                    My seek the peek fundraiser page
                    http://observatory.mountwashington.o...nal&fr_id=1040


                    http://www.mountwashington.org/weather/conditions.php

                    new work pictures 12/09
                    http://public.fotki.com/hvachawk/

                    Comment

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