I have an aqua medic Co2 reactor 1000 and its always having a lot of air pocket. I have changed the flow already from 250 to 350gph and still having same problems. I have to open the gass valve on top to remove some of the air pocket gas by the end of the day. My Co2 is controled by a ph controler and my ph right now is about 6.7 and bubbling about 4-5bps. Is there any way to solve this problem. or Is it supposed to be like this. Help pls....