Cary,
Thank you for the post. I've been out-of-pocket all day and haven't had a chance to respond.
Do you think the "gun" is worth the money, i.e achieve better results than just the eyeball method? Is it something we average pond guys should have?
My situation is a single compressor providing air to two diffusers in one pond and one diffuser in another pond.
Thanks for your expert opinion.