45,000 gals in 2 Hours Now that is really worth $100.

I seem to recall that you are supposed to brush the pool everyday, for the first couple of weeks, so that should take care of the white deposits. They are probably just leftover plaster dust, or some such.

You do need to take a CL / PH reading everyday, so things don't get out of whack. Again, the first couple of weeks should suffice, then you should have a baseline of where your pool wants to be. I (novice that I am) learned alot from reading here, and found that staggering the full test to about once a month works just fine. But, this is because I know my pool and unless something extraordinary occurs (storm, etc..) then I only need to check Chlorine / PH levels on a weekly basis (at a minimum).

Congrats on the pool, sounds like you need it with those temps.