"Peter Duniho" wrote in message
...

A leak on the pressurized side of the system would allow the hand-pump (or
the electric pump) to pump all the fluid out of the system. You don't
need
to spring a leak at the bottom of the sump to lose all your fluid.


It actually does not pump it all out, as the intake for the pump is high
enough to leave a small reservoir to be used by the emergency extension
lever.