Hi All. I refilled my hot tub this weekend and followed a combo of the instructions here and the manual from my tub/chemicals. The main difference is my hot tub manual recommends a much higher TA - 125 - 150. My TA and pH were high so this is what I did and ended up with ~22ppm bromine in the water, and now 18 hours later its still about that much. (I wasn't sure to stop counting when it first turned colorless or another drop to make it very colorless, so that's why I say approx. 22) How long does it normally take for the bromine to go down? I know I can't go in until it is under 10. Did I do something wrong and also any thoughts on why the sticky says TA should be lower than my tub's manual?
tub is 325 gallons
tub is 325 gallons
- alkalinity 190ppm, pH 8.0
- acid demand procedure - 2 drops
- added 1 oz muriatic acid
- aerated for 30 min
- alkalinity still 170 - 180, pH still 8.0
- repeated with 2 oz muriatic acid
- alkalinity 150-160, pH 8.0, calcium hardness 180
- added 2 more oz muriatic acid & ran jets 30 min
- ~140 - 150 alkalinity
- added just over 1.5 oz refresh sodium bromide, ran jets 10 min or so then waited a while
- added slightly less than 6 oz renew shock
- tested after 10 min
- bromine was very high, about 22 -24ppm
- retested just now about 18 hours later, bromine still ~22