Half Off Ponds Pond 3.5 Cubic Feet Per Minute Subsurface Aeration Air Pump, Ponds to 12,000 Gallons, Pond Depth To 15 Feet - PA-100

have had it running continuously for 4 months with no issues. Unit is quiet. Set 8" stone with 25 feet of hose and about 4 feet deep on a milk crate in a 1/4 acre pond. Used low cost harbor freight solid rubber air hose. Made a sun shade to protect unit from hot Florida summers.