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Thread: Sagging winter mesh cover; will it rip/stretch?

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    steveg_nh's Avatar
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    Sagging winter mesh cover; will it rip/stretch?

    My pool is mid project. It's installed, and winterized, but no deck yet. Water level is about 3" below skimmers. The winter mesh safety cover is over it, and held in place using 16" long galvanized spikes, so it's not super tight. It was out of the water though, but over the weekend we got our first light snow (just a dusting), but the pool cover is now int he water, with ice in the middle about 50% of the length of the pool. I'm worried about stretching and tearing over the winter (which has barely started). Pool build says it's fine.

    Thoughts? I can add a pic if it helps.

    Thanks
    24'x40' 25k gal Imperial Mountain Pond IGP, full 28 mil VynAll Ocean Breakers liner. All Hayward system: 140k BTU HeatPro heat pump, 3/4HP single speed TriStar 2" Pump, DE6020 filter, AquaPlus Automation/Salt Chlorination, remote controls, ColorLogic 4.0 lighting. Polaris 280 w/PB4-60 BP. TF100 & K1766 test kits. Rinox Palazzo pavers and Spherik coping. Pool installed 9/2013, project completed 6/16/14.

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    Mod Squad JohnT's Avatar
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    Re: Sagging winter mesh cover; will it rip/stretch?

    I think it will be fine. Even fully anchored, snow on top will drop it onto the water, and it can freeze there. The key is keeping the water level within about 15" of the cover.
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    steveg_nh's Avatar
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    Re: Sagging winter mesh cover; will it rip/stretch?

    Thanks. With nothing on it, it is tight and not in the water. I figured a heavy snow load would bring it down to the water level, but this was just worrying me.
    24'x40' 25k gal Imperial Mountain Pond IGP, full 28 mil VynAll Ocean Breakers liner. All Hayward system: 140k BTU HeatPro heat pump, 3/4HP single speed TriStar 2" Pump, DE6020 filter, AquaPlus Automation/Salt Chlorination, remote controls, ColorLogic 4.0 lighting. Polaris 280 w/PB4-60 BP. TF100 & K1766 test kits. Rinox Palazzo pavers and Spherik coping. Pool installed 9/2013, project completed 6/16/14.

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    Mod Squad JohnT's Avatar
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    Re: Sagging winter mesh cover; will it rip/stretch?

    Quote Originally Posted by steveg_nh
    Thanks. With nothing on it, it is tight and not in the water. I figured a heavy snow load would bring it down to the water level, but this was just worrying me.
    Mine will actually dip down and stay in contact with the water during a rain if I let the pool get too full. It isn't obvious, but nothing you can do will counteract the weight of rain and snow on the cover, so just a little extra weight can stretch it.
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    Re: Sagging winter mesh cover; will it rip/stretch?

    this is my first year with a pool and cover (mesh). Mine does sag a good bit even with just a rain. I was surprised by this as the water should go through but I assume the mesh does "hold" some which weighs it down.

    Nothing to worry about though.
    DIY 18x36 IG Vinyl Rectangle with 2 foot radius; Steel Walls. 8' steps w/t 2 step jets; 2 MD, 1 Skimmer, 2 returns; Hayward Pro Series 24 Inch 300# Sand Pool ; Hayward color logic 4.0 LED light; 2" PVC pipe 4 Jandy Valves, Hayward PL-P-4, SWCG

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    Re: Sagging winter mesh cover; will it rip/stretch?

    I'm a little concerned with this as well. We just bought a new home with the pool, and we had them hire a professional pool company to close the pool before we closed on the home. The actual pool builder did the closing. They drained the water down too much I think, as I believe it is more like 24 " than the recommended 18" from Merlin. The recent snow has significantly sagged the cover.... Will I have recourse with the closer of the pool if the cover is ruined?

    Additionally, if you dont drain the pool this far, since the cover is mesh, isnt there the potential of water raising back into the skimmer box and freezing? Do saltwater pools freeze? My pool is not frozen, yet, even with all the days of high temps in the teens.
    20 x 40 28k gallon Salt Water Vinyl IGP, Hayward pump and Sand filter

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    Jontmiller's Avatar
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    Re: Sagging winter mesh cover; will it rip/stretch?

    I'm not the only one worried, so this is normal ?



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    Re: Sagging winter mesh cover; will it rip/stretch?

    I'm in the same "first winter" learning curve. You can see some pics of the cover clear and with snow cover on page 6 our our build thread in my signature. Sounds normal from what I've seen/read.

    We've had about 14" of snow so far with some ice layers too. Subsequently I brushed the snow down into the middle water area, which was now more icy but not too thick yet. I really didn't want to wait til spring with it potentially frozen to the surface to see how well it rebounds. I'm expecting it will but was just curious to see it happen sooner rather than later. This weekend is supposed to be warm with heavy rain so it should melt and pop back up. I'll also need to pop the cover corner and lower the water level again before it re-freezes. We often don't get winter-long freezing here in central MD.
    18'x38' Rectangle (3'-8 1/2' deep w/ diving board) - 27K gal. w/ gray plaster
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    steveg_nh's Avatar
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    Re: Sagging winter mesh cover; will it rip/stretch?

    Mine looks just like jontmiller's picture! I freaked out this morning, after a 12" snowfall. We have another 7" coming today. The pool builder keeps telling me it's fine. If it's not, he'll have to solve it in the spring.
    24'x40' 25k gal Imperial Mountain Pond IGP, full 28 mil VynAll Ocean Breakers liner. All Hayward system: 140k BTU HeatPro heat pump, 3/4HP single speed TriStar 2" Pump, DE6020 filter, AquaPlus Automation/Salt Chlorination, remote controls, ColorLogic 4.0 lighting. Polaris 280 w/PB4-60 BP. TF100 & K1766 test kits. Rinox Palazzo pavers and Spherik coping. Pool installed 9/2013, project completed 6/16/14.

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    Re: Sagging winter mesh cover; will it rip/stretch?

    Mine looks just as bad, even a little worse... at least I'm not the only one!

    If it wasn't so heavy, it would be nice to have a secondary mesh cover on top with separate quick release anchors that would allow you to just pull the snow off of the cover and reattach.
    20 x 40 28k gallon Salt Water Vinyl IGP, Hayward pump and Sand filter

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    Jontmiller's Avatar
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    Re: Sagging winter mesh cover; will it rip/stretch?

    My pool guy says its normal as well,

    I keep a cheap sump pump on the first step, just plug it in to drain a bit if needed, words well

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    Mod Squad JohnT's Avatar
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    Re: Sagging winter mesh cover; will it rip/stretch?

    Quote Originally Posted by Swordfish
    I'm a little concerned with this as well. We just bought a new home with the pool, and we had them hire a professional pool company to close the pool before we closed on the home. The actual pool builder did the closing. They drained the water down too much I think, as I believe it is more like 24 " than the recommended 18" from Merlin. The recent snow has significantly sagged the cover.... Will I have recourse with the closer of the pool if the cover is ruined?

    Additionally, if you dont drain the pool this far, since the cover is mesh, isnt there the potential of water raising back into the skimmer box and freezing? Do saltwater pools freeze? My pool is not frozen, yet, even with all the days of high temps in the teens.
    Yes, water will get in the skimmer and freeze, but normally things are put in there to protect it. A Gizmo in the hole, an antifreeze bottle in the opening and the rest of the space packed with pool noodle foam.

    All pools freeze if it gets cold enough.
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    Mod Squad JohnT's Avatar
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    Re: Sagging winter mesh cover; will it rip/stretch?

    Quote Originally Posted by Jontmiller
    I'm not the only one worried, so this is normal ?


    Sent from my iPhone while driving
    Looks normal.
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    steveg_nh's Avatar
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    Re: Sagging winter mesh cover; will it rip/stretch?

    Well I feel better now. I don't know why, but I always just assumed it would stay stretched out and not sag. Guess I didn't think that one through!
    24'x40' 25k gal Imperial Mountain Pond IGP, full 28 mil VynAll Ocean Breakers liner. All Hayward system: 140k BTU HeatPro heat pump, 3/4HP single speed TriStar 2" Pump, DE6020 filter, AquaPlus Automation/Salt Chlorination, remote controls, ColorLogic 4.0 lighting. Polaris 280 w/PB4-60 BP. TF100 & K1766 test kits. Rinox Palazzo pavers and Spherik coping. Pool installed 9/2013, project completed 6/16/14.

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    Mod Squad JohnT's Avatar
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    Re: Sagging winter mesh cover; will it rip/stretch?

    Quote Originally Posted by steveg_nh
    Well I feel better now. I don't know why, but I always just assumed it would stay stretched out and not sag. Guess I didn't think that one through!
    As non-intuitive as it is, there is absolutely nothing holding the cover up over the water. It only takes a little weight to push it down, and no amount of force on the straps will lift it back up. Our cat walks out onto our cover to get a drink sometimes. He knows when he goes out far enough that water will come through the mesh.
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    steveg_nh's Avatar
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    Re: Sagging winter mesh cover; will it rip/stretch?

    Just doesn't seem like the materials has that much stretch in it.
    24'x40' 25k gal Imperial Mountain Pond IGP, full 28 mil VynAll Ocean Breakers liner. All Hayward system: 140k BTU HeatPro heat pump, 3/4HP single speed TriStar 2" Pump, DE6020 filter, AquaPlus Automation/Salt Chlorination, remote controls, ColorLogic 4.0 lighting. Polaris 280 w/PB4-60 BP. TF100 & K1766 test kits. Rinox Palazzo pavers and Spherik coping. Pool installed 9/2013, project completed 6/16/14.

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    Re: Sagging winter mesh cover; will it rip/stretch?

    I have the same problem with my solid safety cover. And I just noticed that some of the anchors around the pool lifted up about an inch. Is the normal.

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