>>20498018I expained why. I don't want to get clapped while pumping water. Both my hands and attention are free while it's making me drinkable water. Also those straws are not the most reliable solution. The perforated inner tubes can clog/fail. My backup is a ceramic pump, along with my gravity system. Both are rated for 10K gallons. Also batteries have come a long way since the 60's. I keep solar in case fuel becomes a problem so that I can keep things like my radios, thermals, lights, etc charged.