Pond Boss Forums AERATION Systems questions DIY Aerator

Saving money is okay when on a limited budget. I've built lots of different styles of diffusers and manifolds. So that is just the manifold frame to hold the two membrane disks? FlexAir disks are good and acceptable. On paper your manifold looks good, However your frame with sand is not heavy enough to hold the entire unit in place on the bottom. What is its current sand filled weight??? Inflated membrane disks have quite a bit of buoyancy. When inflated the diffusers will lift the current frame off the bottom. The bubbles on the Pentair example do not show the height of the inflated membrane. To test my opinion put air to them in shallow water and report back to us.