Prevent UGLY mineral stains caused by irrigation well water. Also, use to automatically feed your lawn or repel pests every time you water. The American Hydro Siphoning System hooks up to the irrigation supply to capture iron, calcium and other minerals that can stain landscapes and clog equipment, or to dispense fertilizer and pest repellent. The Siphoning System works with above-ground (centrifugal) pumps and will last approximately 30 hours of irrigation time.