Re: Whole Pool Stain, Rough Plaster at Season Open
Any luck with this? I've been following this thread closely since I'm in the same boat. I closed a perfectly clean pool last winter and opened to a green, algae-filled mess. After cleaning everything up and getting my numbers in line, the water is clear but I've got tan stains throughout the pool. I've super-chlorinated for an extended time and also tried a sequestering agent after 4 lb of ascorbic acid. The stains remain. I've been brushing almost daily with a metal brush but haven't seen a change. I've had some luck with a "Stain Eraser" but that's not an option given the amount of staining. I was wondering if a pressure-washer would help? Anyone tried using a pressure-washer underwater? Will it even work?
18K gallon free-form gunite pool, Sta-Rite S7D75 DE filter, 2-speed Sta-Rite Max-E-Pro pump, Pool Pilot Digital SWCG, Heat Siphon SX3.25 heat pump, Dolphin Deluxe 4 robotic
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