0:12
Bicycle hand pump operating at slow speed – handle piston end.
0:18
Bicycle hand pump operating at medium speed – from the valve end.
0:20
Bicycle hand pump operating at medium speed – from the handle piston end.
0:16
Bicycle hand pump operating at fast speed – from the valve end.
0:11
Bicycle hand pump operating at fast speed – from the handle piston end.
0:07
Manual air pump pumping by hand.
0:11
Pumping antique hand water pump. Vintage recording.