I have installed the above skimmer on the back of my tank today I did everything as per instructions I cant seem to get the bubbles in the collection cup low enough I put the drain pipe in a 4lt bottle and it is filling it in about 10 minutes this cant be correct or I would empty the tank really quick I have the air intake on full if I reduce it the collection cup fills with water and there is no way of reducing the inlet pump flow I have both of the outlet pipes turned up for full flow out and still its not enough HELP its doing my head in

