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    Liquid shock in Maryland

    Anyone have any advice on the best place to get liquid shock in MD. I'm in Howard county. For the past 7 years I've been getting 4 packs of Austin’s Pool Tech Shock (liquid chlorine 12.5%) from the BJs wholesale club in Columbia, but I was there this week and they didn't have it. Maybe too...
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    Adding Polyquat 60 at higher FC?

    Hello, Getting ready to close here in MD. I shocked and now my FC is at 14, cya is 90, and ph is 7.75. The instructions on the polyquat say to add with FC at 1 to 3ppm, but since the pool is covered and it's cold, that FC is not wanting to drop. I really want to take care of closing the...
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    replace existing loop-loc for free form pool

    Hello, My existing loop-loc cover is shot. What would be the best strategy for replacing it? I think it may have come from a local pool supply place, would they have a record of the order so maybe I could get the exact same thing? Or could I send the old one back somehow (it's pretty big 50'...
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    Confused by TF100 DPD FC numbers

    Hello, I'm just getting started and some of my numbers are not making sense. I've had the pool open for a month and I've had the water clear for about a week. I have the pool at 40K gallons because that's what the pool store said it was. Last night I wanted to shock it so I added 2 gallons...
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    Name that valve

    Does anyone know what this valve could be for? There is water running through it when the pump runs. I'm stumped.
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    Brushing stains

    Well I finally got the water clear, and now I can see all the stains! I've been scrubbing these with my standard nylon bristle brush and making no progress. Could these stains be live algae? Should I try a wire bristle brush? Can I damage the surface by brushing too much or too hard? Thanks!
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    Shocking story!

    Long story short, I’ve been trying to shock my 40K gallon green pool that has not been closed with a looploc cover for at least 2 years. I bought the house last summer. Anyway, I figured I’d shock with some diclor since the CYA tested 0, and some 12.5% liquid shock (details are below). But...
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    Should I start Saturday morning or wait 'till dark to shock?

    If I can get the water circulating correctly (don't ask), I could start dumping chemicals in this morning. It's going to be hot and sunny here. Is it really bad to start during the day? I'd like to have as much time as possible to monitor and adjust before I have to go back to work on Monday...
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    Clorox Bleach Germicidal Concentrated - good for pool?

    Home Depot has this stuff 3x121oz for $4.27. It's 8.3% and does not appear to have anything special in it. Wondering about the "Germicidal"? Anyone know if this would be OK to use in the pool?