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    MasterTemp 250: Works on High Speed, not on Low or Spa Speed

    28k 3yr old IG pool. All Pentair equipment. I've found that this year, when the VSF pump is on low (2000RPM), and there is a call for heat, the heater will start the igniter, which last for ~10s, then when it fires the burner, after 2-3s, it makes a rattling sound, and the heater burner shuts...
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    Cloudy Water

    So I opened my pool to clear water a month ago. Everything was doing fine, clear water, good chemistry, and then we had a week or so of colder weather. I covered with a solar cover for four days, and when I uncovered, cloudy water. Also, rust colored substance all around the pool floor. The...
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    EasyTouch8 & Landscape Lights

    I have an EasyTouch8 panel, and am going to be installing some LV LED 12v landscape lights around the pool. Wondering if I can install a (safety / isolating) transformer inside the EasyTouch panel to supply power to the lighting? I'd need it to be multi-tap, as distance is a concern w/ regard...
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    Post SLAM, High FC drop in a day

    Hi all. I am just coming off a SLAM process on my pool. While my chemistry wasn't bad, I was seeing more CC of 0.5 than I previously did. The water was also slightly cloudy, but I could see the main drains fine. I also noticed that I was vacuuming alot more debris than usual, as it was a...
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    Solar Install Questions

    I have a 20x40 Vinyl pool that was installed last year, with a 250K NG heater (no SWG). I am having 480 sq ft. of solar panels (plastic tubing, not glazed) installed in a couple of weeks, and have some questions. 1) I have a Pentair VS pump / cartridge filter, and the rise to the roof is about...
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    Ice in Pool

    Hello all. I just had an in-ground 20x40 vinyl liner pool installed this past summer in upstate NY. It has a conventional skimmer / return plumbing system, with a cantilevered poured concrete deck. It also has a Merlin Dura-Mesh safety cover installed. The pool was closed by the pool company...
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    Pool return & skimmer placement

    I just pulled the trigger on an IG 18x36 rectangular pool. The pool will have double main drains and 2 skimmers (all independently plumbed 2"), and 3 returns (independently plumbed 1.5"), and another return w/ jets in the lounge area on the long end of the pool. Pump is an Intelliflow, with a...
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    Cantilevered concrete coping build question

    I am about to pull the trigger on an IG vinyl 18x36 pool w/ cantilevered concrete coping in Rochester, NY. I am planning on a broom finish concrete deck, with #57 stone or similar as backfill. The pool will be dug and backfilled in the fall, and finished in the spring, to give a good amount of...
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    Question about pressure/head/flow rates for new pool

    Question about pressure/head/flow rates New pool being built in upstate NY: 18x36 rectangle, 6' deep end. ~21,000 gallons. Pool is ~65' from equipment pad. Would like turnover in the 6-8 hour range, so 50-60gpm for filtering. SUCTION (1) 2" line from double main drain (2) 2" lines from...
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    New 18x36 pool in Upstate NY, plumbing questions

    Hello- I am new to this forum, and learning a TON of information about pools. I've never owned a pool or maintained before, and this site has been a terrific resource! I am shopping pool builders in my area to build an 18x36 vinyl liner rectangle pool. Half will be shallow (3.5'), with the...