Recent content by DonQ

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    Hayward Heat pump switch

    I have a Hayward SumXL140 heat pump. The main power switch on the front of the unit is stuck and will not move to turn off and on. Is it hard to replace? I have moderate mechanical skills (I can assemble most Ikea items without swearing or bloodshed). Is it something I should try to do?
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    What's your current pool temp?

    Mine was 45F when I opened this week. The good side of that is that the water was crystal clear, just a lot of worms and some dirt on the bottom!
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    Ethanol vs propylene glycol antifreeze

    I use about 5 or 6 gallons.
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    Ethanol vs propylene glycol antifreeze

    I don’t mean ethylene glycol based antifreeze, I’m talking about ethanol (ethyl alcohol) based antifreeze. Some are advertised as being for pool use and I was wondering if anyone had experience with them.
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    Ethanol vs propylene glycol antifreeze

    Does anyone have experience with ethanol-based antifreeze? I have been using propylene glycol-based in the past and have had some issues with high chlorine demand on startup.
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    Price of Stabilizer

    walmart has 10#/$26 with free shipping
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    Isaias recovery

    I would like to thank all the forum and pool school experts over the years for their great advice which helped us recover from the hurricane quickly.. We lost power for seven days and there was a lot of debris and dirt blown into our pool. After years of lugging jugs of liquid hypochlorite we...
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    Weighing water samples

    Extra effort, complicated? No more complicated than eyeballing a meniscus: 1. Put cylinder on scale 2. Turn on scale 3. Fill with sample water.
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    Weighing water samples

    I'm a little surprised at the negativity here. I was an analytical l chemist in my former life and I always tried to reduce unnecessary error if possible. If 'meh' precision is good enough why not just use test strips?
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    Weighing water samples

    I realize that many tests have some variation, but when comparing results, especially when looking for trends, reducing some of that variability would be a good thing. Reading sample volume by eye is one source of variability. I have a small pocket scale (200 gm, 0.01 gm readout) that I use to...
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    Borax shortage

    That's not my issue, I'm just looking for borax.
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    Borax shortage

    I can't find boxes of borax at any of my local stores. Is there a shortage?
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    2018 Bleach Prices

    1 gallon of 12.5% at Namco (stores in CT, MA and NH) for $2.99 Code 18184 (July 3 2018)
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    Filter bypass problem?

    I just opened a slightly green pool and am slamming it. After I bump the hayward ec-75 filter there is a dark green flow coming out of the return jets into the pool for a short time, then it goes clear. What could cause this? The filter is 25 years old. Time to get a new one?
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    2018 Bleach Prices

    Just bought gallons (128 oz) of 12.5% at Big Y supermarket in Western Connecticut for $3.00 each