I have used clarifier and it does work well with cloudiness. It can also cause foaming. Read the directions, I don't think you can use clarifier on the same day as metal out.
After using it and the tub clears, clean the filters and you'll have crystal clear water. I have a circ pump and run my main pump a couple of times to get the water to run through the filter more frequently.
As for foam, see the foam thread!