Marlene, 3 gallons of 6% bleach will give you a chlorine of about 15ppm. As long as your stabilizer isn"t really high that should work. Keeping it there by adding your bleach at night and running your filter 24/7 should start clearing this up. If your PH really is at 6 you need to get it up to about 7.6 quickly. Go to a grocery store and get a hold of a few boxes of plain old 20 Mule Team Borax. Add it to your pool about 1/2 box at a time and keeping adding and testing until you get the PH into range.