Wrong fuel at the pump

Not if the competant person was shown how to close the valves. :wink: No need for running up and down then. :laughing:

Colingl:
Not if the competant person was shown how to close the valves. :wink: No need for running up and down then. :laughing:

You needed a good watch with a second hand and confidence. :laughing:

Or the old style foot valves which could be closed from the top!