Pond Boss Forums AERATION Systems questions Best budget-minded air hose for RC51 rig?

You shouldn't see more than about 10 PSI max. If it was my pond and system, I'd trench in 1" flexible black polyethylene tubing to both lessen the back pressure over that length of run, and to minimize the possibility of the air line freezing during the winter. Run it to a manifold at the ponds edge, so you can turn off and on different diffusers for winter/summer use. From the manifold box, go with the weighted tubing.