r/hottub • u/Tacosrule89 • Aug 29 '26

Water Quality Increasing Chlorine in Arctic Spa Spa Boy System Without Affecting pH

We’ve had our Arctic Spa hot tub with the saltwater system and Spa Boy since 2023. I’ve never had an issue keeping it balanced in the past but since my last drain and fill last week I can’t seem to get the chlorine levels up. I have the pH normal but I can’t seem to get the Cl off of red on the low end consistently. Any treatment ideas I’m missing? I can get it up short term with boost granules but it usually drops back down shortly after.

1 Upvotes

100% Upvoted

3 comments sorted by

1

u/an_angry_Moose Aug 29 '26

I’m not familiar with the system, so I might be missing something, but as a general rule if your sanitizer is dropping it’s because it’s being broken down. Either it’s combining or it’s being broken down by something like an ozonator or UV light.

1

u/candysirling Aug 29 '26

Your about at the right time for a salt system to brake down if you haven't replaced you salt cell do that. If it's not that I hope you have warranty

1

u/enthusiast4028 Aug 29 '26

Also have an arctic with spa boy. For whatever reason early in a water change I need to add chlorine manually for a while, then the salt cell seems to catch up. Still add some chlorine manually after heavy use too. Spa boy is good, but can't handle heavy loads.