Globe Blue Run Dry impellers
I'd like to hear comments from anyone who has used the Blue Run Dry impellers from Globe Composites. I have an older Sherwood raw water pump on a Universal M-15 that I recently replaced the rubber impeller on that and now I need to pick up a spare. These blue impellers are supposed to be able to run dry for up to 15 minutes. Do they work as well as/better than the rubber impellers? Do they really last longer? Thanks for any comments.