Sue,
What was the scenerio? Did it reslove the weed/oxyen/algae problems that were occuring?
How long was the bubble tubing? How much psi and cfm did you have to feed to it? Did you use XL or standard AirPods on the other two diffuser locations?
Just trying to get a grasp on the results that can be expected from the bubble tubing.
I think it would be a great tool in those areas of a lake, pond or canal, but just have not heard from anyone using it.
