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Thread: Solar heat is not heating like it use to

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    Solar heat is not heating like it use to

    I'm in Sa Jose CA 95118 and this year has not been too warm.
    We hit 80-85 this week and my pool has been rather cold compared
    to last year. I would say it's only in the 70's (pool temp).

    I have the system running 6.5 hrs like usual this time of year and
    I can see the solar heating is on.
    When the deck jets go on, I can feel that he water is not too
    warm coming out of the jets (like before) though it's 85 degrees outside.
    What cold it be, what can I do to troubleshoot?
    It's been weeks of 80+ weather and my pool is too cool.

    thanks in advance

    25k gallon kidney shaped pool
    1 hp pump
    cartridge filter (4 cartridges)
    jandy deck jets

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    X-PertPool's Avatar
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    Re: Solar heat is not heating like it use to

    Just a guess, but maybe there was more direct sunlight last year? Temperatures could be similar from one year to another but if you have more cloudy weather it could be affecting how much heat you are getting.
    -Kevin
    X-Pert Pool Service
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    22,000 gal / 16' x 32' / Vinyl / Hayward s244t /Pentair SuperFlo 1 hp

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    Re: Solar heat is not heating like it use to

    Is there a way to check if my your solar system is working properly?
    25k gallon kidney shaped pool
    1 hp pump
    cartridge filter (4 cartridges)
    jandy deck jets

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    Mod Squad JohnT's Avatar
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    SW Indiana
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    Re: Solar heat is not heating like it use to

    Check the inlet and outlet temperatures.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Re: Solar heat is not heating like it use to

    sorry for the ignorance but how do you check
    the inlet and outlet temp?
    25k gallon kidney shaped pool
    1 hp pump
    cartridge filter (4 cartridges)
    jandy deck jets

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    mas985's Avatar
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    May 2007
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    Pleasanton, CA
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    Re: Solar heat is not heating like it use to

    Do you have a solar cover?

    The nights have been fairly cool even though the days are hot. Without a cover, you will lose quite a bit of heat. Being in the same area as you, I now run with a cover most of the time and without it, it would be impossible to hold the heat.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Mod Squad JohnT's Avatar
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    Re: Solar heat is not heating like it use to

    Quote Originally Posted by jvmagic
    sorry for the ignorance but how do you check
    the inlet and outlet temp?
    The easiest way is with inline thermometers, but you can use a pool thermometer to measure the temperature in the skimmer and then in front of a return to get a rough idea.

    If there is water flowing through the panel, they are working though. Check for any warm spots on the panels while they are running. The panels should be about pool water temperature even in direct sun if there is good water flow.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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