Be careful when using garden hose or any other hose because some can easily develop kinks. Kinking of any airline will cause you lots of problems. Do types of weights and methods of attachment on airline that will minimize any kinking when the airline is lifted or moved around in the pond. Diffusers should be periodically lifted, checked, and cleaned to keep them working like new. Kinks in airlines are a big underwater headache.

aka Pond Doctor & Dr. Perca Read Pond Boss Magazine -
America's Journal of Pond Management