I filled our pool this summer from a deep well. It was solid brown by the time it got to the skimmer. When we put up the pool 2 years ago at the old house, I paniced and rigged up the vacuum hose in a bucket with rocks(weight) and chlorine sticks and cargo straps. We moved and this time I just waited until it reached the skimmer. Turned on the pump and just kept backflushing to get the gunk out. Within 3 days the water was clear. I didn't use bleach yet as I was still researching it and I had Chlorine sticks left over from last year. I don't panic anymore....I just Log-On to this site.