The Pump Primer Who Invented Water and Trees and Logs and Pumps and Deep, Deep Thoughts a Couple of Days Ago
I used to dread hearing Grandpa Jacobson ask me to pump water for the cows. I should guess I was about ten at the time, and there were twenty or thirty cows and horses who needed water, who could drink it faster than I could pump it. It was a log trough, and the pump stood at one end, directly over a shallow well at the edge of the swampy field. There was a plunger inside the "belly" of the pump, with a flap valve. Lifting the handle shoved the plunger down, lifting the flap valve, allowing water to flow up above the plunger. Pushing down on the handle dragged the plunger up again, at the same time causing the flap valve to flop down, keeping the water from escaping back down: out it ran, down a short run to the log trough, where the cows drank it faster than I could pump it. Worst, when the cows were satisfied, I had to keep pumping until the trough was full. It was a big log; at that time of my life and size, possibly the biggest log in the world...