If your water didn't get cloudy yet, it probably won't. Keep your filter running 24/7 for a while. Don't use a flocking agent unless the water does not clear with filtering - sometimes the less you do to the pool the better. I only suggest flock when the water doesn't seem to clear once you hold chlorine at the proper level for about 2 days, and there is no combined chlorine.

Here is a link to get ascorbic acid (vitamin C) which I am sure is cheaper then buying the crystals at a health food store, you might want to keep some on hand - sometimes when you are prepared you don't need it (ha ha), that's what happened to me this year!

http://www.msm-msm.com/store/agora.c...scorbic%20Acid