Gill Passman wrote:

Does anyone have any ideas here? I'm pretty much stuck as to whether I
have a serious problem or a trivial one....

Well, I can't help much except to say that when I had a bad hair algae problem,
the stuff produced bubbles regularly. I concentrated on the algae problem and
ignored the bubbles. They did no detectable harm. My case doesn't sound quite
like yours, though.

The main gaseous problem of which I'm aware is hydrogen sulfide. If you have a
decent nose (which I don't), you should be able to tell if this is the case by
sniffing the odor given off when you use your turkey baster.

My guess (and it is only that) is that your problem is trivial.

George Patterson
Forgive your enemies. But always remember who they are.