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We currently have an above ground, 500 gal hot tub with ozonator. It's only 4 months old. When we first got it, we did the Ahsome flush. The last new/clean fill we did was about a month ago, and things were going really well. We use 10% sodium hypochlorite to sanitize. CC was consistently at .5 or below. With this last fill, I tested the overnight demand and there was a 60% loss. I think, due to the ozonator, this hot tub has a high chlorine demand. My husband and some friends hung out in the hot tub last weekend for hours and didn't replenish any of the chlorine. The next day, I tested and FC was 0, CC was 1. The water was also very cloudy. so I thought I would try to SLAM. I've been doing it for 3 days now keeping it at 13ppm (as best as I can). The water has cleared up and is no longer cloudy. Initially, I was losing 5ppm chlorine every hour. Now, it's about 1-2ppm every 3 hours. Unfortunately the CC is still somewhere between .5 and 1ppm (I'm using the Taylor K-2006 kit, at the 10ml level). Am I understanding this correctly, I keep chlorine levels up until CC drops below .5ppm? Thanks! pH = 7.4 CYA = 30 Temp = 96%F
