On Oct 31, 10:24 am, Wayne Sallee wrote:
Are you by any chance using it on fresh water?

Yes! It's fresh both in the sense that it's not salt water and that
there's no biological stuff in it; I set it up in my sink to see how it
worked. I hope this is the problem - it's an easy one to solve.


On Oct 30, 10:09 pm, kim gross wrote:

If the water is flowing through the pump (and air) even if most of the
pins were off of the needlewheel it would still make very small bubbles.
If you are getting pea sized bubbles I would guess that either the
pump was not spinning the impeller at all, or the impeller was broke so
that it was not spinning the needlewheel.

Do you have an airpump hooked up to the air intake? If you are running
an airpump on it you could be cavitating the pump, which might cause
larger bubbles, but I'm not to sure about that.

Even with the needle wheel, the pump moves enough water that I didn't
suspect that it was the culprit. I don't have an air pump hooked up to
the air intake. If I blow air through the intake, I just get more large
bubbles.