Having trouble holding vacuum! Have checked from the bag to the catch pot to the pump holding vacuum here. Installed a new bag even ran a dye around the edge, inlets/outlets and pleats no leaks. which only leaves the mold, this is made from 18mm custom wood with glued joints and 5 layers of epoxy paint hard to see it leaking. do you have any ideas? Could I infuse it and leave the pump running? Help Regards.