visskiss

I was planning a decontamination at the next change, but that won't be for a couple of months. I think I was just being cheap with the chlorine. I now add 6-8 oz 8.25% bleach after soaking. The water is definitely clearer. I will try this for a while and see how it goes. I'm also going to reduce filtration to 4 hours total instead of 6 as the tub is overheating (according to Nordic, this is fine). I am hoping this will be enough ozone. At 50mg/hr, this is 200mg total, so we'll see. I did use dichlor at the beginning, but I understand this is unnecessary unless there is sun exposure. I wasn't planning on using dichlor anymore. I will keep testing and let you know.

Thanks chem geek. I typically soak around 30 to 45 minutes. FC is always at zero the next day, even if I shock with 12 fl oz of 8.25 % bleach. I am thinking it is the ozone which eats it all up. I soak in the evening and then the ozone goes on at midnight and then midday for 6 hours total filtration. I have started putting in 6 oz per day of 8.25% bleach. The FC still reads zero the next day, but the water seems clearer. I have also hypothesized that the guilty bacteria may be growing where the cover meets the rim or some such place. I will give the cover a good clean. Are you recommending an alternative system? Even 6oz of bleach per day is only about $4 per month, which is not too bad.

Hi, I'm having trouble with the ozonator chlorine balance. I have the new del ozone spa eclipse (50-70 mg.hr ozone). I have filtration at 4 hrs per day. I am adding 2 oz chlorine (8.25%) after use. The problem? Hot tub rash! Everything else is balanced (CA 300, TA 50, PH 7.6 CYA 30). Is it possible to eliminate chlorine completely and just use ozone? If the ozone is eating the coloring, what is the point of adding chlorine? If the ozone is insufficient, then what is the point of ozone? Thanks!