A cheap DC brush motor will not last like the AC. My plan was buy an inverter and a good ac pump if the test one works out. I added the speed controller to slow it down so it would run cooler and last longer.
I built my unit to be portable. Every thing is inside a plastic tote mounted on a 4x4 frame. The controller, speed controller and timer are in water proof plastic containers with silicone sealing the wires through the side.
Two large steel stakes hold it down in case of wind. I can put it in my tractor bucket and move it if I want to.
Im only two months in but so far so good.
