Recent content by gcsherwood

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    chlorine goes away *very* fast

    Just a bit of a follow-up.... My FC was about 10 before I went away on the weekend (a couple of days after my last post). I received and installed a Stenner 10gpd pump, and had it set for 1/2 gal per day just before I left. According to the pool calculator, that should add 4ppm or so per...
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    chlorine goes away *very* fast

    Well, it didn't take as much more as I had feared. I added 2.5 gallons 10% bleach, two hours later, chlorine gone. Did it again, two hours later, chlorine gone. The third 2.5 gallon addition did the trick. A day later I was still at dark yellow on OTO, so did an overnight FAS test...
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    chlorine goes away *very* fast

    no smell. cc is 1 1/2 - 2ppm. NWS says we got more than three feet of rain this summer. That could dilute cya amounts a tad, could it not? My pool only runs from 3 1/2' to 5 1/2' in depth.
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    chlorine goes away *very* fast

    perhaps I see the problem.... The water looks fine during the day, but tonight I have the pool light on while I'm adding bleach and taking measurements. The amount of solids floating in the water illuminated by the pool light is truly amazing. And not in a good way..... While no one could...
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    chlorine goes away *very* fast

    Thanks, I'll give that a try. This may be a stupid question, but after I add the bleach, any idea how long it should take until it is well mixed in the pool? As my .sig says, I've got a skimmer, kreepy krawley, waterfall, and three jets all sucking or squirting away....
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    chlorine goes away *very* fast

    I did say my testing was done with a week-old TF100. I had a CYA of about 30 before adding a pound and a half of stabilizer. I've also added several pounds of dichlor while trying to get any FC to last more than a couple of hours. I tested it today around 60. Perhaps it was as high as 80...
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    diy chlorine feeder with CO2 valve

    thanks for your thoughts. after much cogitation I ordered a stenner.....
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    chlorine goes away *very* fast

    I'm trying to switch to BBB. My levels were all wrong, and I'm pretty sure I adjusted them in the wrong order so everything got a bit high. I don't think that should have affected what I'm seeing, but maybe so.... the problem: this afternoon I added 1 gallon of 10.5% bleach (from pool store...
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    diy chlorine feeder with CO2 valve

    The solar panels drain every time the pool pump shuts off. There is a checkvalve at the highest point to allow air in as the panels drain. Right or wrong, that is how it was installed. I will say that it is pretty spectacular when the pump cuts on in the morning as that huge volume of air...
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    diy chlorine feeder with CO2 valve

    Oh, I see I didn't answer your questions. I have a 12,500 gallon inground plaster (exposed aggregate) pool. I have Starite Posiflow filter w/100 sq ft media. Simple one-speed pool pump. Inlets are skimmer, main drain (usually closed or nearly so) and a side port which has a kreepy crawly...
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    diy chlorine feeder with CO2 valve

    Thanks for the reply. I basically am looking for something simple and reliable. Since I have a suction port on the skimmer available any time the pump is running, I only need a valve to control the flow of bleach. If the timers were to get out of sync while I'm out of town due to a power...
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    diy chlorine feeder with CO2 valve

    I'm switching over from tabs to bleach, and I like the idea of automating the bleach delivery. I've read through all of the posts in this section (at least all that looked relevant) and I didn't see anything quite like I'm envisioning. The setup starts as one I read about, where a bunch of...