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    Spa and Hot Tub Winter Freeze Protection

    January 29, 2015
    mattspencer

    spas-and-hot-tubs-at-SPP

    At this point in the winter, if you do not already know that to prevent frozen pipes and equipment you need to keep the pumps running, you'll have learned that lesson the hard way.

    Today's post is a quick one about how to automate freeze protection on a spa or hot tub, so that you do not have to worry about remembering to keep the pump running during freezing weather.

    All of the hot tubs and spas that we sell come water temperature sensors that will turn on the pumps if the water drops to 44° F. Most spas since the late 90's have come standard with freeze protection. Older spas, or inground spas may not have this built-in protection.

    TO PROTECT A SPA FROM FREEZE DAMAGE

    For aboveground spas and hot tubs:

    • Check that you have a freeze sensor installed, if not, install a freeze snap switch, or other sensor to match your control equipment.
    • Install a freeze sensor into your control board. Look into your owner's manual or contact us for a recommendation.

    For inground spas:

    • Install a digital timeclock with freeze protection, like the Intermatic PE-153, with the optional freeze sensor
    • Install a freeze protection thermostat, to start up the spa heater at a preset water or air temperature.

     POTENTIAL PITFALLS & PROBLEMS

    • If you drain the spa to avoid freezing, you must be sure to blow ALL water out of all pipes and equipment.
    • do not use pool antifreeze in spa plumbing.
    • If power goes out, sit tight and keep spa covered tightly until power is restored. Most spas will hold heat for 24-36 hours.
    • do not turn off the heat and rely on freeze protection to - protect you. If you are going to rely on it, make sure to test it first to be sure it works. Freeze damage can be a disastrous repair, and can sometimes 'total' a spa.
     

    Matt Spencer
    SPP Pool Expert  

    Blog Author
    mattspencer
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