This is an excellent tutorial for anyone who would like to connect a solar powered water pump to their water storage barrels and for easier watering. In this scenario, the finished assembly is able to pump water 125 feet and uphill to reach the garden area. The garden is approximately 800 square feet and takes about 30 minutes to water using an estimated 50 gallons. This is a pretty powerful pump and you may or may not have the same requirements. The authors take this into account with their building suggestions.