Pond Boss Forums AERATION Systems questions Need help with pressure calculation

Forget about any pressure calcs for the line that is above the water level. Add .5 psi for every foot the diffuser is under the water surface.

i.e. If the diffusers are 10' below the water surface, you would see 5 psi on a gauge.

Like was said in the previous post, it doesn't matter the number of diffusers.

The diffusers should be placed so the membrane is right side up, and not covered by anything. I ran into a situation on Friday. I pulled some diffusers from a pond, and they were placed upside down in a 5 gallon bucket, and covered with gravel to weight them down. The lifting rate of the diffusers had to be affected because the bubbles were condensing into larger bubbles as it went thru the gravel.