The symptom: the jet doesn't work and water leaks out the bottom.

The 5-minute fix: turn the unit over, release the hose going to the
jet, remove the two screws holding the hose to the housing, pull the
hose connection out and replace the o-ring. If you don't have a new
o-ring, move the old one around and put it back together. Temporary, of
course...

--
Cheers, Bev
"If you put the government in charge of the desert, there would
be a sand shortage within ten years." -- M. Friedman (?)