Your numbers are darn near perfect! Your Cl level is dependent on your CYA level (see Ben's Best Guest Chart at the top of the Cl forum). I think your CYa is probably a little low, but others advocate 20-40 ppm. If you find that your Cl drops too frequently during the day, you might want to consider upping it a little. Ph should stay 7.2-7.8, alk generally should be 80-120, but if your pH is staying stable with it at 70, then leave it alone. Calcium doesn't matter in a vinyl pool.

If your water is getting cloudy, then shock it (raise your Cl to 10) and leave your filter running overnight. That should take care of it.

Janet