Urban Pond Aeration

This idea is to create exercise "machines" that give you a full-body workout while also providing aeration for urban ponds.

One problem with urban ponds – they suffer from too much fertilizer runoff, which leads to excessive plant growth, death & decay. The decay then results in lowered oxygen levels in the pond. One solution is to add oxygen back into the water through aeration. One prime example of an aeration system is the fountains you often see in ponds. They’re not there strictly for decoration. When the water is shot upward, it mixes with air and raises the oxygen content of the pond.

So, you would want machines that provide a workout while mixing air with water. A water wheel would be one example, giving you a stair-climbing type exercise. Water bicycles that allow you to churn around the pond would be fun. For an upper body workout, a water cannon powered by a two-handled cranking pump; the harder you pump the further it shoots. A jet-powered "monster" ala Loch Ness might be fun -- it would feature a pump connected by hose to a "monster" that sinks to the bottom when not in use, but rises and swims about bubbling and squirting as you work.

I’m sure the creative minds here could think of other machines. If done right, the machines could actually be an attractive addition to the neighborhood pond, while providing environmental benefit.