spinman
Aquarium Advice Freak
One of my dual overflow upside down "U" tubes seems to want to maintain an air bubble that in the past has gotten bigger and broken the siphon. Funny thing, the other "U" tube doesn't have this problem.
I've tried shaking the tube, but no change. I've tried to pull the tube out and restart the siphon, but that little air bubble remains.
Thoughts?
Mike
I've tried shaking the tube, but no change. I've tried to pull the tube out and restart the siphon, but that little air bubble remains.
Thoughts?
Mike