Ok, heres my concern! We had our new pool installed over the weekend and started filling it yesterday about 3:30pm and as of right now it's about half full. My concern is should I wait until it is completely full before i can add chemicals? I stopped by walmart on the way home from work tonight and picked up six gallons of the liquid chlorine just in case, oh, and a bag of baking soda for the TA level. This pool is about 19,000 gallons and will take about another 24hrs or so to be completely full. I dont want things to start growing in the pool that really should'nt be there. I havent tested the water yet either.