How does a foot pump work
Foot pumps are manually operated pumps driven by foot via a handle or lever. They move air as you push your foot up and down. With this pump, you put your foot on the black lever at the top and pump your leg up and down, making the red cylinder move back and forth. A valve inside the cylinder lets air in (when you raise your leg), which is then pumped out through the black hose on the right (when you lower your leg). A gauge on the top of the pump shows the air pressure in the tire in Imperial units(bars and pounds per square inch or psi).
Foot pumps are manually operated pumps driven by foot via a handle or lever. They move air as you push your foot up and down. With this pump, you put your foot on the black lever at the top and pump your leg up and down, making the red cylinder move back and forth. A valve inside the cylinder lets air in (when you raise your leg), which is then pumped out through the black hose on the right (when you lower your leg). A gauge on the top of the pump shows the air pressure in the tire in Imperial units(bars and pounds per square inch or psi).
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