Besides PoolRx what else do I need?

All you NEED with PoolRx is balanced water in normal pool chemistry ranges, and a constant residual of least 0.5-1.0ppm of Free Chlorine. You can keep a higher ppm of chlorine if you wish. (With PoolRx you will notice it takes you less chlorine to reach your desired ppm) You will also need to run your pump long enough to circulate and filter your water at least 1.5 times a day (ideally, during the heat of the