Just filled our pool for the first time this weekend. 42hours with 4 garden hoses! Can't wait for the water bill. Anyway our builder will of course start up the pool the correct way in the next few days but what should I expect as a new pool operator? Can the kids swim right away? when is the pool considered usable? Also exactly how hard on pool equipment are dogs? Our Newfoundland/Lab mix can't seem to stay out of the pool. Looking forward to using the hot tub this winter. Thanks for the advice.