[Maverick00]

Originally Posted by Aquaria

I have the same overflow only my problem is not big enough pump and I have to keep the overflow throttled back quite a bit creating excessive noise hoping once i get a bigger pump it will quiet down also because of this my waterlvl in the exit chamber of the CPR is only 2-3" not even above the foam of the bulkhead

I had mine running like that for awhile. I was more comfortable having that chamber as low as it was and not having to worry about overflowing in that chamber if the water level in the tank started to creep up. I couldnt take the noise coming off it though, and the air breathing tube didnt appear to help at all with the water level in that chamber so low.