hi there

ok, I've taken off the lance altogether, where it screws into the
unit.

Switch on and the pump runs endlessly and very low flow rate dribbles
out of the
lance socket. There's a lot of air swirling around the pump casing. I
don't know if that's
usual, perhaps to cool it down? Or whether the casing's cracked and
there's some
sort of air leak?

Water is constantly spitting out of the skinny transparent overflow
hose out of the top
of the cylinder head. Other than that, not much happening.

Dude