Oops.. I forgot
this part but it look like you already have the ends off.
Disconnect the high pressure hoses and separate the 2 pressure
vessels. Be very careful not to damage - twist, or enlarge the holes for the
interconnector between the 2 pressure vessels ( at the end opposite the HP
hoses). Use water from the pressure water system - a 1/2 hose will clamp over
the SS flare fitting. Cover the hole in the end plug with a thumb - turn on the
water - once the air is out, the end plugs will come out easily - apply a
little resistance to balance the 2 ends so that both ends get started out.