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    561packrat's Avatar
    561packrat Posts: 80, Reputation: 1
    Junior Member
    		  
    #1

    Sep 4, 2008, 08:40 PM
    adding solar heating loop to hot tub
    My wife recently purchased an inflatable hot tub. Despite my initial misgivings and a slight beachball smell it has worked out extremely well. It a has pump unit for the filtering and jets, with an integral electric heater. It takes quite a while for the water to heat and the electric bill has really jumped. I would like to add a loop of black plastic pipe between the pump and the tub as a preheat to take some of the load off the heater. My question is ; would 50' of possibly 3/4" id pipe add unacceptable resistance or backpressure? I understand that there are a lot of variables, (pump HP being one unknown), I am just looking for an informed guesstimate. There would be no elevation change for the additional pipe. Thanks. Ken
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #2

    Sep 5, 2008, 05:49 AM
    Hi Ken,
    Click on; Solar Swimming Pool Heating Systems from Hot Sun Industries,Inc. of San Diego, California to check out sloar pool heaters. Regards, Tom
    561packrat's Avatar
    561packrat Posts: 80, Reputation: 1
    Junior Member
    		  
    #3

    Sep 5, 2008, 06:46 PM
    Quote Originally Posted by speedball1
    Hi Ken,
    Click on; Solar Swimming Pool Heating Systems from Hot Sun Industries,Inc. of San Diego, California to check out sloar pool heaters. Regards, Tom
    Thanks, Tom. Checked out the site you suggested , very informative, it'll help me get started learning what I need to know to make some informed decisions. Ken
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