We drained our pool, although not all the way, to have tile work done. The workers were less than clean and all of the grout, plaster, and other junk fell into the water. We drained it as far as we could prior to refilling but unfortunately we were not able to get it all out. We filled it from the city fire hydrant which also appears to have thrown some rust in. The water is completely brown. We have yet to start the filter as we had to wait to fill the pool above the intakes. How can I get the water clear without attempting to completely drain it again? Help!!!