Hi everyone. Here's my first post! I'm glad I found this community.
I searched the forums and could not find a topic related to this issue.
We just installed a brand new 450 gallon Artesian (Island Spas) spa. The place we bought it from provided a suite of Leisure Time chemicals including SPA 56 chlorine.
It has a Del Ozone plasma gap ozone generator and I am having trouble finding out what chlorine level to run. The people at the spa dealer said that the ozone causes the chlorine level to read low, but I did some research and learned that the ozone destroys the chlorine, which my testing results prove to be true. With a clean city water fill (FCL of 1.04), I can add enough chlorine 56 to bring it up to more than 3 ppm and one day later it's at less than 0.5 without using the spa at all. The filter and ozone default to running 24/7. Water is crystal clear.
So my question is what chlorine level should I be running? Should I follow the normal spa recommendation for a level of 3-5? If so, I would need to be adding chlorine every day, but I would rather err on the chlorine level being too high than too low. I had issues with cloudy water and foam at first and ending up changing the water twice in less than a month. I use a ColorQ test kit to get my results because I am colorblind and the test strips and 5-way test kits are impossible for me to read.
City water test results
Just after filling and adding 0.45 oz by weight of the chlorine (maybe a bit too much), here are my test results:
After 24 hours without using the spa these were the results:
I am working to get rising PH and ALK levels down, which is also proving a challenge. On a daily basis I can add enough dry acid (about 2.5 oz by weight) to lower the PH to 7.0 (per the pool calculator), and it's back to 8.0 in a few hours. The alkalinity will drop by less than 10 points after each treatment. Is this normal? The amount of water testing I need to do (several times per day) is making me feel more and more like a chemist.