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  1. E

    Using a pipe extension in lieu of a plug to winterize return

    If you lower the water level below the returns, why is there a ‘rush’ to put the caps on? You risk ruining the threads on the return if you get significant ice build up and ‘pipe movement’.
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    LED Light winterization...I need a sanity check here

    Older metallic pool walls conduct heat, so hard-packed ice seldom forms at the liner interface. In the dead of winter, I have 6 to 8 inches of ice thickness, but can always fit the fingers of a gloved hand between the liner and the ice wall. The soil temperature at depth remains at 12-15 C year...
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    Two weeks with a solar cover

    So looking at the pool cover picture, do you set the water level low enough, so that it can accommodate all rain and snow until April? Or do you pump water off the cover during a mid-winter thaw?
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    Two weeks with a solar cover

    Derekm, just curious, what ice thickness develops in your area? Does snowfall accumulate continuously over the winter? Thanks!
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    Tried to deep clean my sand filter first time ever....think I messed up bad :( What are my options

    To reseat and centre the pipe, you will have to remove most of the sand. You can use a small pail or yogurt container and scoop it out. Some people use shop vacs, but I have never. Your filter is in a pool shed, how were you going to catch the overflow while deep cleaning?
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    Do I need to balance water if closing right after filling (new liner)?

    No chemicals are needed, but it might be an idea to run the pump and check that all is well before you winterize (water draw down and purging the pipes). It depends how much time you have and whether you want to learn to winterize yourself or leave closing to a company.
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    Mustard Algae?

    You can inhibit photosynthesis by laying down a black garbage bag over the stain and keeping it weighed down to completely exclude light for a week or two. The ’reeky’ smell you describe is DMSO (dimethyl sulfoxide) which can only originate biologically. But minerals may have nucleated on the...
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    Is chlorine or acid causing rust? Where should I keep my chemicals?

    The neutral connector on my pool pump timer would rapidly corrode and become non-conductive, until I moved my Cal-hypo tubs outside the shed. Never had a problem since.
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    Recommendations for mesh covers

    Here is a picture; this one is somewhat expensive. Locally here they cost 8$CAD. They last many years if stored dry away from sunlight.
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  12. E

    Recommendations for mesh covers

    If you have harsh winters with many thaw/freeze cycles, significant snow accrual and the possibility of freezing rain events becoming ice on the mesh surface, your sleep will be more restful without a cover. The mesh cover will become frozen and trapped at the ice/snow interface, and in the...
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    Question about using Chlorine pucks

    If your pool is ice-covered for several months, CYA may degrade through anoxic microbial reactions. Otherwise, only dilution can reduce it.
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    Fellow Cold Winter AGP owners: Please share winterizing tips and tricks

    I remove mine in late October, one or two weeks before the ice takes hold. Snowfall accrual over the winter would tear my mesh cover. I forget I have a pool from early November to early May.
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    Solar Cover Bubbles Coming Off

    Old solar covers can be cut up and used as tent ground sheets; very warm and insulating and keeps out soil humidity.
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    Fellow Cold Winter AGP owners: Please share winterizing tips and tricks

    Opaque pool covers are useful in the Fall to inhibit photosynthesis and capture debris, but if your pool freezes for many months and you receive significant amounts of snowfall, it Is best to remove it just before freezeup. Over winter freeze/thaw cycles will trap the cover at the ice/snow...
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    Skimmer cover

    Good point, I remove it from the pool immediately after using it. My pool is icebound from the first week of November until mid-May, ice thickness is 8-10 inches by late winter, and we receive 3.5 meters of snow, so not even a cover is left on the pool.
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    Skimmer cover

    After depressing the flap in the skimmer mouth, I add pieces of noodles there, as well as in the skimmer body. I also use a submersible pump to keep the water level below the returns, and skimmer mouth until the pool freezes in early November.
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    High FC/No CYA and staining

    Many years ago, using an ISCO underwater spectro-radiometer, I determined that the blue pigment used in polyethylene thermal blankets absorbs all of the UVA and UVB radiation. With extended use, this is a mixed blessing as it protects the chlorine, but the lack of UV allows algal growth on...
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    I use a solar ‘blue bubble’ blanket continuously on my pool when not swimming, because my pool is surrounded by vegetation and because I am obsessed with heat retention as I live ‘up north’. Algae begin proliferating on pool surfaces in quiescent zones because of reduced circulation and scouring...
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    I reactivated the post because I thought it deserved a second look. Calculating the nominal copper concentration at time=0 in say, a 10000 L pool is edifying. From this number, you can deduce what scientific principles are employed and finally, identify the specific conditions, under which this...
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    Moved from here. The Canadian company now has its own bilingual website : Crystalplus System - Products for pool and spa maintenance Lots of reviews and a FAQ, and 90+ reviews on Not sure it is available outside Canada, as there is only a Health Canada registration number on the packaging.
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    Why does pool become cloudy when algae becomes chlorinated?

    Usually, when you chlorine-shock living algae, you bleach their internal chlorophyll content, so the pool goes from green to cloudy. During the SLAM process, the bleached dead algae are filtered out, and the pool will gradually clear. A pool can appear clear, but still have algal growth on the...
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    Lamotte Waterlink Spin Lab Vs Taylor Drop Test

    It would be interesting to obtain 'same operator' statistics on the Lamotte Spinlab. The cell filling phase requires a repetitive light touch to prevent over or underfilling. The printed computerized suggested 'corrective measures' are usually overkill; trying to correct every little deviation...
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    Canadians: where do you buy your taylor reagents?

    In our seasonally operated swimming pools in Canada, excess CYA is rarely a problem due to overwinter water exchange and under ice (anoxic) biodegradation. I find the four-way test strips (Free chlorine, pH, Alk and CYA) made by Aquachek, sold at Canadian Tire, to be more than adequate to manage...
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    A Canadian Please and Thank you!!

    Nidamer; feel free to PM me anytime. Enjoy your pool!
  27. E

    A Canadian Please and Thank you!!

    Another advantage of a solar cover is reduced chlorine losses. At CYA=0, my chlorine residence time is 4-5 times longer, with the solar cover in place. The blue solar covers absorb 100% of the UVa radiation impinging on the pool; so besides reduced out gassing, this might be why the residence...
  28. E

    Where to buy a Taylor 5/6 way test kit in canada?

    So, are there any Canadian retailers in Quebec, that resell the Taylor kits from Lowry et al?
  29. E

    Do I need to lower my PH to close my pool?

    It depends on organics and length of time of a permanent ice cover. If under-ice microbial degradation occurs, over a period of 2 to 3 months, dissolved CO2 cannot out gas to the atmosphere, so the waters will tend to acidify. In addition, the snowpack is acidic, so depending on the amount of...