Thanks for the responses. I had the liner done today, and the pool company ended up filling the pool up roughly half way since they said they needed to in order to make sure the liner laid correctly (I guess). The pool is 23,000 gallons, and I had planned on using the SS recipe to fill. Now that there is already water in there, how should I proceed? I have bleach and stabilizer that I purchased from Sams. I will pick up the up borax tonight. Should I test the water first in order to give you more info? I do have the K 2006 kit. Thanks in advance.