The pump that your replacing should have the
same connections as the pump your putting in.
If you have a camara take a few pictures of
the pump top at different angles.
Make sure your doing this in a WELL ventelated
area, away from flames. As your tank is going to
be exposed to air for a while. Make sure if you
can, empty as much as your able before hand.
Dont use any power tools arond the tank when
your using the hose clamps. Do them all by hand.