I bought one of these but I can't get it installed correctly. I'm just not sure I'm doing it right because my return flows water out very strong and then when I try to add the poolskim it just blows it off. I'm not surprised though because it goes from blowing water through about a 2 inch pvc pipe to trying to move water through 6 little holes when entering the body of the poolskim (I tried to post pictures but they were too big). Is this how it supposed to work? I don't want to glue the PVC together and then blow out my pump/filter if there is too much pressure. Besides, it says you don't have to glue it. Thanks for your help!