Ok thanks for the input! What i am using for a diffuser is just cotton and for some reason no bubbles come out from it. Although when i take the cotton out bubbles seem to be coming out just fine. When I have the cotton in i can see bubbles are still going being produce in my bubble counter. Must be a leak. also i do have two check valves one from the yeast bottle to the bubble counter and one from the bubble counter to the tank. Can that be a cause for me issue?