All you need is one diffuser module that sits at the bottom of the pond (connected by some weighted tubing)

Atlantic Nozzles are 304 stainless steel for performance and longevity

PP1050UV  11' x 11' Pond Package With 18W UV Light by Savio

3/4 acre at 13  to 16 feet  in pond depth

(AMPS) @ (VOLTS) MOTOR HP MOTOR

Atlantic Water Gardens Stainless Steel Copper Finish Spillways Size:36" Spillway Model CS36 All you need is oneAtlantic Water Gardens Stainless Steel Copper Finish Spillways Heavy gauge spillways by Atlantic Water Gardens bring a polished, sophisticated dimension to the Formal Spillway line. Available in 12 inch, 24 inch and 36 inch widths, Spillways are constructed of 304 stainless steel for maximum durability, in copper plated or brushed silver finishes. The load bearing body, non clogging weir, and threaded inlet make these sleek, elegant Spillways as easy