Solar Slow Pump was the world's first commercially available low power solar pump. It was developed by Windy Dankortt In 1955, In response to those who said "That's Impossible". Thousands of slow pumps have been installed worldwide by ranchers, home owners, missionaries, health workers ane government agencies. Some of our oldest solar slow pumps are still in service. Slow pump is not submersible but can draw water from shallow wells, springs, cisterns, tanks, ponds, rivers and streams, and push it as high as 450 vertical feet and through miles (kilometers) of pipeline. Slow pumping minimizes the size and cost of the solar array, wire and piping. Slow Pump is less expensive than submersible DC pumps & made in a much wider range of sizes. The wearing parts typically last 5-10 years & the overall life expectancy is 15-20 years.
Solar Slow Pumps