Hello, I just installed the AquaMedic Reactor 1000 inline with my Rena XP3 filter. I have set my regulator at about 25psi and dialed the needle valve into about 5-10 bubbles per second. I can't see any co2 bubbles in the reactor and there are just short bursts of co2 that come out of my spraybar. It is noisy like there is air in the line. I also put an Azoo check valve between the bubble counter and the reactor. Something is wrong. Does anyone have any ideas?