Korallin Reactor problem

[MacDime]

I have to bleed co2 out of Korallin C1502 several times a day. The gas builds up at the top of the reactor and the circulation pump stops moving water because gas gets in the hose. any ideas on what the problem is ???

[C.Eymann]

Your bubble count is probably too fast, also use the top port for effluent rather than the marked one on the pumps output side.