IME with the Naut skimmer you will want the water level to be about 1/2 inch below the black line on the skimmer base just below the collection cup. Hope this helps. In order to get it to that level I believe you have to move the discharge tube up or down I cant remember what direction
Done - Thanks, I raised the tube and the water level shot right up.....too high at first and then I adjusted. I don't have anything in their to give me good foam yet - but tomorrow the rock goes in and then the action will start.