Hot Springs hot tub, chlorine level will not come down

Razorhog

Bronze Supporter
Jun 20, 2013
714
Northeast Arkansas
I have a Hot Springs hot tub that I've had for about 8 months. It has the freshwater salt system, which has been GREAT so far. It maintains CL without me doing anything. Unfortunately I ignored it for a while and the FC level went through the roof. It was 30+ last week. Turned the salt system to off and thought it would come down fairly quickly. It's been a week and the FC is still at 15ppm. Either it is still making chlorine while off, or it just takes a long time for that much FC to dissipate. Anyone else experience that?
 

Mdragger88

Bronze Supporter
Jun 1, 2018
1,800
Hernando, Ms
Pool Size
26000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Intex Krystal Clear
Do u have cya in the tub? If so you can safely use it so long as its not above slam level for your cya FC/CYA Chart.
Some organics (people) will surely lower the fc. Along with the sun as mentioned above. I wouldn’t use my best speedo when dipping though 🤣
 

Razorhog

Bronze Supporter
Jun 20, 2013
714
Northeast Arkansas
Do u have cya in the tub? If so you can safely use it so long as its not above slam level for your cya FC/CYA Chart.
Some organics (people) will surely lower the fc. Along with the sun as mentioned above. I wouldn’t use my best speedo when dipping though 🤣
No CYA, I haven't used dichlor in months because of the SWG. When testing the other day I got a single drop on my new hoodie and it left a bleach spot :( This whole fiasco started right as the ice/snow started so yesterday was the first day in over a week I could really get to it. I had covered it with a tarp just in case we lost power. I would have removed the tarp, covered it in blankets and put the tarp back on and just hoped nothing froze. Anyway, I'll let the FC come back down (hopefully get some sun on the water today) and then re-balance the water and turn the SWG back on. Thanks!
 

Mdragger88

Bronze Supporter
Jun 1, 2018
1,800
Hernando, Ms
Pool Size
26000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Intex Krystal Clear
U might want to add some it will help with the harshness on your equipment & yourself - about 30 or 40 ppm is recommended. U can just use the granular u use in the pool in a tied up stocking/ skimmer sock - it probably wouldn’t be but a few tablespoons.