so I have the aquatop xyclone ps370 skimmer, (new) HOB. does anyone have any knowledge on this? The instructions are worthless, I have youtubed and Googled how to and still come up with nothing. I have both gate valves closed and air to the pump barely on and I still have the top tube full of water and not bubbles (foam) like it should be. If i tweak anything just a hair water floods the catch chamber. I also have a tremendous amount of air bubbles discharging from unit into the tank. Please help.......... Thanks.