MDouglass

Thanks for the posts about using bleach. Does using bleach in the water have any affect on skin? My wife was sensitive to bromine when we first got the tub and we exclusively use chlorine now. Does liquid chlorine last longer? If they both contain Dichlor why would that be the case?

So, I feel like I should know this by now, having owned my hot tub for 3 years but I admit I am still learning to master water chemistry. I have a master spa hot tub that I keep at around 103 degrees. I purged the water about 2 months ago and used Ahh-Some prior to draining. My water is clear and I don't have any rings around the sides. I can't understand why Im going through a tub of the chlor-brite chlorine so quick. In my first year I added chlorine maybe 1-2 times per week, but I kept the water at 97 and only turned it up to 103 or 104 when i wanted to get in. Now we use the hot tub 5-6x a week, so we don't adjust it down and up that often. Is the higher temp consuming the chlorine more rapidly or is there another problem? I also shock the tub with a non-chlorine oxidizer after each use, which accounts to about 5-6 times per week. All my readings are fine except for Cyanuric acid (CYA) level which are reading very high over 100ppm. It seems that after a month after refilling and with almost daily use that CYA number exceeds 100ppm...Should I change up what I am doing? How can I use less Chlorine ?

I did use anti foam and that seemed to help. The levels are fine , sanitizer is good and I haven't gotten sick after using the hot tub so I think I'm good.😉 Appreciate the feedback!

Damn, I wish I knew about the Ahh-Some product before the pool company convinced me to use Spa Purge. Im going to attempt to add anti-foam tonight and if that doesn't do it then I am definitely draining and starting over. Whats another 500 gallons in a month on the water bill 😑 Thanks for reply!

Could be biofilm bacteria in your lines, I would use a spa water purge product to clean your spa - remove your filters, empty the product in the tub with the jets on and after 24 hours completely drain the tub. Making sure to expel any water from your lines and then refill the water.

Hi all...Im new to this forum. I have had a hot tub for about 3 years now. It's a master spa approx 500 gallon tub. I typically drain the tub twice a year Jan and May, we really don't use it in the summer months so I end up filling the tub in late September / early October. Anyway when Im ready to change the water I use a product called Spa Purge by Natural Chemistry to clean the lines, jets etc. It gets real foamy and after about 12 hours to 24 hours, I throw in a submersible sump pump to drain the tub. I follow the directions on the bottle. As an extra step...After all the water was emptied I decided to switch on the tub and run the jets to expel any water left in the lines. After cleaning the tub walls with Simple Green and then rinsing the walls again with the hose and sucking out, I was ready to fill it up again. I should note, that I used a filter cartridge solution for my filters and made sure to give them a real good rinse before installing them back. So here's my issue - When refilling the tub, I encountered an air-lock situation (probably from turning the jets on without water and bypassing the filter area when filling), only one of my jets would turn on, but I could hear the motor on the others and i usually can get the air bubble out of the lines by cycling on the pump or by use of a dedicated plunger in the filter housing to force the air out. When I finally got the air out, some cloudy water was pushed out from one of the jets. The tub was already full by the time i got the air lock resolved. Now when the jets are turned on- there is some foam that dissipates when the jets are turned off. Which leads me to think the foam is from one of two issues. I either have some remaining cartridge solution from the filters that didn't get rinsed off or some remnants of the Spa Purge is in the water from the jets. If it is either of these two theories, is the water safe to use? or would I have to drain and refill again? The water is clear and I have started to work on adjusting the alkalinity of the water... is it possible the Leisure Time spa up would cause the slightly foamy water when the jets are turned on. Just trying to avoid having to drain and refill again.