Ok possibly one of the worst situations is a pop up that doesn't pop up anymore! So after removing the cover plate on the winder crank mechanism I found the thread stripped on the worm gear nut (not sure what it's called) but the four cables from each corner post connect to it. I'm new to 'pop-ups' and our first one is an oldie but in pretty good shape, a Bonair BA700 1994. So, I'm looking for spare parts and or advice except the fact that I should have lubricated the worm gear as I have now become aware of. It looks an easy fix, it is just the availability of parts? I live just north of the Toronto, Ontario area. Any ideas, thoughts please and thank you.