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    Magic eraser removed soft yellow coating exposed during closing

    Positive magic eraser experience to remove soft yellow stain visible on walls after dropping the water level during closing. Background My pool remained crystal clean (following pool math) after opening (May’23) until 1 week before closing (Oct 12,23) when falling leaves, dirt and debris from...
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    FC and pH test sensitivity as samples measured 8hrs apart had different values

    Two Taylor 2006C samples taken 8hrs apart showed increase in FC and pH. The night before it rained/stormed all night. I cleared debris and baskets and tested the water. The FC 0.8 and pH 7.0 were low. I was about to add both Pool bleach (2 gal) and increase the pH, however, I waited and did...
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    1969 Gunite single pool light replacement - A case of leave well enough alone to avoid potential leaks?

    Is this a case of leave well enough alone....dont touch the light to avoid leaks? Question: Can a 1969 built gunite pool with a light (in disrepair) in the deep end be replaced without draining because the light niche constructions are similar to current pools that allow replacement under water...
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    1969 gunite pool ladder brackets are threaded, looking for how to attach a new ladder to the deep end

    Been searching for a way to use the existing threaded ladder brackets in a gunite pool built in 1969 in Ohio/USA to install a new ladder. There used to be a ladder based on photos prior owners have sent me, but they don't have memory or knowledge on why the ladder is missing. I want to avoid...
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    Slow upward trend for Phosphate and TDS

    Since opening in May, the chlorine pool has remained clear and mostly a TFP thanks to the advice from this group, use of Taylor K-2006C and poolmath. The chemical requirements have been mostly +2gal Liquid Chlorine about every week, with pH/Alkalinity/Hardness moving in and out of range when it...
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    Cloudy Blue water 1 week after opening

    First time trying to balance the pool chemistry myself following the Pool company opening the pool last week. Currently the pool is cloudy blue. Pool details: in ground 30,000 gallons, Plaster from 1963 painted white by prior owner (dolphin is slowing removing the paint....), Chlorine, Sand...