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Thread: When can I put my solar cover on?

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    When can I put my solar cover on?

    Hello, our new pool was just plastered and filled 9 days ago. We were supposed to be able to swim in it after 7 days, but the pool maintenance company that is balancing the water told us on Friday "it may not be ready by Monday, the Ph is still a little high". Well I haven't seen him yet, and no one has returned my calls. What I'm wondering is, can I put my solar cover on now? It is supposed to be 90 degrees tomorrow (Tuesday) and I'd love to use the pool if it is balanced by then! After Tuesday the outside temp will go back into the 70's so I have one chance this week Would the solar cover affect the chemicals? Thanks!
    13k gallon IG pool, built 2017, Tahoe Gray plaster, variable speed pump, Taylor 2005 test kit (yes my signature needs more, but I will update it when I find my contract!)

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    Re: When can I put my solar cover on?

    So the "solar" cover is kind of misnamed, as its primary function is to reduce evaporation. Putting it on during a nice calm sunny day like today may actually slow the heat absorbed by your pool. That wind storm the other day dropped our pool temp from 91 to 81 because we don't use a cover and it probably lowered your pool temp too.

    Today and tomorrow should be nice 90+ days that will increase your temp and if your guy gives you the green light, putting your cover on this evening will certainly help retain any gains. I wouldn't expect any miracles, what is your temp now? Without any sort of heating, I would guess 2-3 degrees a day is what you will see on days like today and tomorrow.

    Dont you you go wishing any nice 70's days away! We will have plenty of 100+ days
    Build Video 2016 -- Solar Pad 20.5K gunite (37'x15') rectangle (3.5'-7') deep-- MicroFusion Laguna finish -- Jandy VS pump, cartridge and iAqualink RS -- Polaris 360 Black -- 2 Laminar jets -- 2 nichless 30w color led -- 550sq/ft Heliocol solar -- Soft water auto fill -- Stenner 17gpd

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    Mod Squad pooldv's Avatar
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    Re: When can I put my solar cover on?



    That's right, a solar cover's real job is to slow overnight heat loss due to evaporative heat loss. A solar cover will also dramatically reduce out gassing at the pool surface which will slow pH rise.

    I'm in the more 100 days camp, not less.
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: When can I put my solar cover on?

    I'd ask the pool guy for the actual numbers, don't let him say "a little high", lol.
    And I don't understand why a little high ph would keep you from swimming, unless it was really high.

    Your sig says you have a test kit. I'd measure myself, and see what the numbers are.

    Randy
    25,000 gal fiberglass pool, Raypak 336k BTU low nox RP 2100 gas heater, Pentair CCP520 520 sq ft Cart filter, Max-Flo VS2303VSP pump, diy control and automation system

    seperate spa, with own pump, cartridge filter, Hayward H200FDN heater, diy control and automation system

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    Re: When can I put my solar cover on?

    Thanks everyone! So I really don't see that there is any disadvantage chemical-wise (or in any regards actually) to putting the cover on. I did call the pool company but have not heard back from them yet. I will definitely test myself, was just hoping to wait until he is all done before using up any of my regents (sp?)

    Would almost rather take over myself right now; I probably could have balanced it over the weekend but oh well.

    Thanks Captain, nice to have someone in the same area when questions arise! It is supposed to cool down after Tuesday (first time in my life I've been disappointed by that), and really want to get that cover on. Last week when it was 90 degrees for those two days the pool got up to 78 degrees without a cover on.
    13k gallon IG pool, built 2017, Tahoe Gray plaster, variable speed pump, Taylor 2005 test kit (yes my signature needs more, but I will update it when I find my contract!)

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    Mod Squad pooldv's Avatar
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    Re: When can I put my solar cover on?

    Yes, I would put the cover on and start it warming up now. Get it up in the mid-80s and swim next weekend! Reagents.
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: When can I put my solar cover on?

    Will do as soon as I can drag my husband out there to help me this morning! Without reading the posts on this forum that recommended an 8-mil cover (b/c of weight), I bought a 16-mil. Oops!
    13k gallon IG pool, built 2017, Tahoe Gray plaster, variable speed pump, Taylor 2005 test kit (yes my signature needs more, but I will update it when I find my contract!)

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    Mod Squad pooldv's Avatar
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    Re: When can I put my solar cover on?

    Uh-oh. I cut my cover in half to make it easier to handle. And we can just take half off if we aren't going for an all day/weekend swim.
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: When can I put my solar cover on?

    Good idea! I prefer to just hang out in the shallow end, and my kids are all very young, so maybe I will do the same with our cover!

    The pool guy called me back and said they won't be out until Wednesday, so I tested myself.

    Fc 3 (more like 4)
    Tc 3 (more like 4)
    Ph 7.2
    CYA 30
    Alk 40
    Calcium Hardness 230 (weird, when I fill my hot tub it's always more like 110)

    Some of the numbers seem off, but safe enough to swim right?
    13k gallon IG pool, built 2017, Tahoe Gray plaster, variable speed pump, Taylor 2005 test kit (yes my signature needs more, but I will update it when I find my contract!)

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    Mod Squad pooldv's Avatar
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    Re: When can I put my solar cover on?

    Yes, it is safe to swim when pH is 7.2 to 7.8, water is clear and FC is between minimum and shock level for your CYA, FC/CYA Chart

    You are getting some calcium leeching from your plaster into the water. Add baking soda to raise TA to 60.
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: When can I put my solar cover on?

    Oh yes, the plaster. Will I need to bring the Calcium down then (or tell the pool guy to, since we have him for another 3 weeks)? Will raise the TA, thank you!
    13k gallon IG pool, built 2017, Tahoe Gray plaster, variable speed pump, Taylor 2005 test kit (yes my signature needs more, but I will update it when I find my contract!)

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    Mod Squad pooldv's Avatar
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    Re: When can I put my solar cover on?

    No, you want your CH at 250-350.

    Here is what you are looking for, Pool School - Recommended Levels
    TFP Moderator
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    Re: When can I put my solar cover on?

    Oh, well shoot, I'm better off than I thought I was. I was just looking for a chart like that, thank you
    13k gallon IG pool, built 2017, Tahoe Gray plaster, variable speed pump, Taylor 2005 test kit (yes my signature needs more, but I will update it when I find my contract!)

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