Socks catch particles in the water that might otherwise pass through the filtration system. If it is still not clear, I'd keep the cl high for a few more days. You've come too far to quit too soon and have to start over. Also, you should be running the pump 24/7 while you are trying to clear the water. Have you testing in the evening after the sun is off the pool and again in the morning within 2 hours of sunup to see if you are losing more than 1ppm of chlorine overnight. if you do lose more than that, it is a sign that you are still fighting something in the water and should continue high cl levels.