it is bad. had to drill out all the bolts to the pump because it was all seized up. Slipped a couple of times and couldn't remove the pump any other way. the 4 pry bars and all the banging didn't help either. also the corrosion has almost eaten thru to the expansion chamber. I recently changed my pump that was in real bad shape and when i put in in the water today i see some water coming out of the top of the adapter plate,