You will need to increase the The CYA, You should shoot for 30 to 40. The Ph was a tad low, as was the chlorine, but you are dealing with that. How about the Total Hardness and the Total Alk? You can get a 5 way kit from Walmart or else a better Talor or Ben's Kit. I have the 5 way, and if I want anything more I take in a sample. But I plan on getting Bens kit when I can swing it.

Is it possible to just take the unit out of the loop? Is this a Baquacil type system? If so, I am thinking you should also change the filter media. I have no experience with the system you have at all.

If you want to learn how to mantain your pool this way, go to PoolSolutions.com and read everything you can there.

Good luck