Hi again! My drain and refill is complete. I did not do the above suggestion about filling and draining at the same time, but mine went very well. Kept the pebbles moist all day yesterday, although we did leave it alone over the two nights any was exposed because the walls of the pool actually stayed cool. Remember, this is just my experience, but I think we lucked out this weekend with not too horrendous temperatures and constant surveillance in the daylight hours. Plus, fiance is now really impressed with my new pool expertise!