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  1. I

    Cloudy water without evidence of algae

    During the summer I have a regular problem with cloudy water. I keep my chemistry within the levels recommended by TFP (chlorine 5.0, CC 0.0, CYA 70, TA 79, ph 7.6) I regularly check Combined Chlorine and OCLT, neither of which show evidence of algae. I have several Crape Myrtle trees near the...
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    Seal between sand filter standpipe and multiport valve?

    I have a Hayward Pro series sand filter. Is there supposed to be an O-ring or other seal between the standpipe and the multiport valve? If not, what prevents pump pressure from forcing water and fine sediment directly through the standpipe/multiport valve junction rather than being forced down...
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    Debris bypassing sand filter

    I have a Hayward S244T sand filter and I suspect that water and sediment is bypassing the filter. Two reasons for this: 1. Gauge pressure stays very near the clean pressure for weeks and even months without rising. 2. This morning, after the pump being off all night, the bottom of the pool...
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    Very slow chlorine drop after SLAM

    I SLAM'd my pool on September 9th to clear up mustard algae and it worked beautifully. The water cleared up within 24 hours and has stayed clear since. I added 8 lbs of calcium hypochlorite per Pool Math app, which brought FC up to 35 and I turned off the SWG cell but ran the pump/filter...
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    Mustard Algae or Pollen?

    I have been trying to get rid of some yellowish buildup in my pool for weeks. I don't know how to be sure if it's mustard algae or pollen. I put some clarifier in the water and vacuumed the entire pool and the pool looked great for a day, then the yellow stuff started to appear on the bottom of...
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    SWG data for TFP math input

    I have a Hayward SWG GLX-Cell-15 and this model is not in the search list in the setup section of the TFP pool math app. What should I enter for 24 hour chlorine output?
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