Moved into a house with a pool in October and the previous pooltender told me it hasn't been drained and refilled in years. That can be an issue in Arizona. Hardness and CYA are extremely high so I think it's time for a drain and refill. My question is about the start-up chemicals. What's the process for determing how much of what I need to add in the beginning. I have a Taylor K-2006 test kit so I can monitor it as need be. Somebody suggested a "start-up kit" but that doesn't make a lot of sense considering I already have the chemicals contained in those kits! Any suggestions would be appreciated.