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    White funk forming on new pool light

    I just swapped out my old 120v incandescent white light and enclosure with this LED light at 12v that fits right over the existing niche. But it is forming these white flaky things all over, what the heck is that? I did a different LED light in the attached spa (same water) and it’s doing fine...
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    Recommended heater 400k

    Hello! Need to replace my Jandy 400k btu heater and looking for recommendations. Pool store recommended the Sta-Rite which is most economical, but is it a dependable and long lasting or should I consider other brands? Not a salt water pool. 25k gallon in ground with jacuzzi.
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    Plaster cracking, how to fix?

    Hello! I’ve got a concrete/plaster pool that was replastered or painted about 10years ago I think. I’ve got two hairline cracks one on side and one along one of the drains at the bottom. Also plaster is mottled in color a bit. I’m asking contractors to come and take a look and wanted some advice...
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    Resurfacing Pool

    I hope I’m in the right forum for discussing resurfacing my pool. In ground 25k gallon, concrete pool with painted plaster wall (I assume) is starting to show surface cracks. So off I go researching and came across UltraGuard and how it inhibits algae and is better than plaster or paint and more...
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    Air blower for jacuzzi

    I have a 1.5 hp air blower for my jacuzzi and wondering how I can make it variable power? Is some kind of dimmer switch instead of the on off power switch an option? I'm pretty sure it's not, but a boy can dream....
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    Hasa Liquidator Issues

    When my pump runs, 2700rpm, liquidator works great during run. When the pump stops, though, the LQ slowly drains out into the system (as if suction is still going) till the LQ water level is down to the out float valve hole. It didn't used to do this, I've run the LQ for well over over a year. I...
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    Cellulous vs DE?

    Dear Hive Mind: Is the fiber stuff from Leslie's or FiberClear or other brands the same, and are they better than DE in your opinions?
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    What do I need, CH is low

    Hi! RO'ed about 2 months ago now and maintaining a FC of 3 with liq chlorine. I had a CYA of about 40-45 when the RO finished. Now, I did a test and I get two results. My Taylor kit gives me about 50 for CYA and a larger comparator tube test with the Blue Devil kit...
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    12v pool light conversion using existing 120v wiring and fixtures

    Is this a bad idea to convert to a 12v system using my existing 120v wiring and pentair fixtures in my under water lamps? I read that gfi is useless at 12v, so that makes going to 12v dangerous or against code? i recently replaced my bulb and a new silicone gasket and I noticed a little water...
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    Stain Eraser and rust marks

    I just tried the StainEraser on some rust spots I had from a bolt from my solar cover reel and a bottle cap rusting on my floor from at least a year ago, and it worked really exceptionally well! I'm very surprised how well it took off the coin sized rust spots. Any harm in using it? As a pool...
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    SLAM finished?

    Hello! I am in my 6th day of a SLAM: CYA 30-35 maintained FC of about 14-15 Kept my pump at 2250rpm 24/7 Two SLAM questions: 1. My pump stopped last night, probably did not run for 5ish hours over night, will that throw things off for me? 2. Three and four nights ago I had an FC drops of...
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    Started a SLAM

    Ok after an RO I started a SLAM. Cya at 30, ph at 7.6. I got the FC to 13 around 5pm, added more at 9:30pm to get it back to 13. But over night it went down to 9.5 when I checked at 6:30am. I got it back up to 13, of course but two questions: 1. Is it ok that it dropped below the FC goal for a...
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    About to get an RO

    Just finished my Taylor testing. I am RO filtering the pool today, here are the readings before the RO: FC: 1.6 pH: 7.9-8 TA: 175-80 CH: 600 (my tap water is about 80) CYA: 240 Saturation Index 1.05 Once I get the post RO results in a day or two, I'll post. I know I should SLAM the pool after...
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    In ground hot tub - 1 jet much stronger than the others

    I have one jet that is missing some regulator part or something in the back that makes this jet MUCH stronger than the others. I have no idea how to take it out and how/what to replace it with. When I cover that jet with my hand, the other jets equalize and get better pressure, so it's mos-def a...
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    Solar panel heating

    I am considering solar panels for the pool, and have some newbie questions: Are all panels about the same, or is it worth the premium for Heliocol panels? I got an install quote of about $6k for my 25k, 16x32 pool, while pool stores tell me $2k-ish should do it (obviously without Heliocol...
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    Pool RPM and timer settings

    Hello! I have a Pentair SP3400VSP variable speed pump on an in-ground 23k gallon pool (not salt) and it has been set up like this: 9pm-12am 2750rpm about 4 psi at the DE filter when the DE is fresh (7lbs in 60sqft filter) 80-82 gpm flow rate filters about 14,400 in 3 hours 12am-3am 2250rpm...
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    Mustard algae?

    Non-salt-water: I think I have the yellow mustard that grows on my walls, almost entirely in the shade, even 2-3 days after brushing. I am fighting a CYA level of 200+ and am planning most likely an 80% draining (my CH level is 400 too) or an RO treatment if my house water tests hard, too...
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    Plaster crack

    This doesn't look to be a problem, right? Just a surface crack? I have a few of these, this one runs from below the tile line to about where the wall curves to the floor. I don't have any water loss issues, but thought I'd check. Should I pool putty it anyway?
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    What is causing this staining? Grey Mottling?

    My plaster pool is about 12 years old, we've been in this house 3. The previous owners I believe either acid washed or repainted the pool surface before we bought the house. I have been noticing this discoloration more lately than ever before, and am not sure what it could be coming from. I've...
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    Partial drain of pool to lower cya, should I use chlorine neutralizer?

    I am biting the bullet and gonna do a partial drain to lower my CYA levels. I had added liquid chlorine to the pool yesterday as a shock, thinking I would try BioActive one more time in a week, once the algae is gone (first time was a COMPLETE FAILURE), but I figured I'd save the trouble and...
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    Salt vs non-salt pool

    Hard to find reliable information, I read a lot of articles warning me away from salt water systems (expense and corrosion). Do salt water systems have CYA issues? I assume not, as you're not adding tabs. What in your all opinions are the pros and cons to going to salt? My pool has the salt...
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    High CYA - BioActive

    Moderator note - Moved from here: Phosphates in clear pool - Page 2 I am having the same issues with CYA (200) and I am trying BioActive, and I missed one step in the process, so my failing results are not valid, I need to do it again, but I pray I can get it to work as draining 10k+ gallons of...
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    CYA issues

    Hello, firstly, thank all of you for this great forum. I've been a reader ever since I bought a house with a pool 3 years ago, and it's helped me make better decisions. Ok, my 25K gallon pool has everything in check, except for the CYA readins which are at about 200. They were around 200 2.5...