My Solar-Powered Dankoff Slow Pump System – Part 2, by Tunnel Rabbit
(Continued from Part 1. This part concludes the article.) The #1303 model of Dankoff Slow pumps has the highest ‘gpm’ (gallon per minute) rating of the less expensive 1300 series. The #1303-24 pumps the most water for the money, and to a height that it will pump that is adequate for most situations. The advantage of a 24 volt system over a 12 volt pump, is that most surface water sources would likely be in a shaded environment, so the panels would need to be located some distance from the water source to obtain the needed amount of sunshine. We …