I ran 1" dia 100psi poly pipe over 500ft buried 12"-18" from my Gast 0523 to a simple manifold at the pond's edge then ran 5/8" weighted line to two double diffuser stations 10 ft deep in my one acre pond.
I think a single buried 1" line will carry all the air you will need and a simple manifold is easy to build. The big question is getting the correct pump to provide the needed cfm at your depths. Talk to Sue.

Last edited by dg84s; 02/28/15 08:27 PM.