Finally, I was able to hold a fc level of 14 overnight. But now my pressure reading just sits at 0, doesn't move at all regardless how long the filter is running. This happened after I backwashed alot of junk out Yesterday. My retun line is getting very little suction coming out. I checked the skimmer basket while the filter is running on filter and no suction is coming out of it. I think something must of gotten stuck in the lines while vacumming Yesterday. My pool is no longer clody, I can now see the bottom of the pool in some places, but now I have this major set back since I had to turn off the filter. Where should I start to unclog what ever got in?