After some hot tub rash, I've been SLAMing my covered hot tub (using the 13ppm FC recommended in the PoolMath app). With 33ppm CYA, I've been raising the FC to 13 ppm 2-4 times throughout the day, testing at the end of the daylight (about 4pm) and then testing again the next morning (about 9am). Based on the Pool School article, I've gotten the CC down to under 0.5 (good), but it recommends an overnight FC loss of 1ppm or less (the water has been clear the whole time). The last two...
SLAMing Hot Tub with Ozonator
SLAMing Hot Tub with Ozonator
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