The pump is used in a sewage system, and this is why we require a non-clogging design. The "explosions" are hard to descibe. I haven't witnessed what has happened, and have only viewed the condition of the pump(s) when they have been taken out of service due to failure. The outer case of...
Here's the situation. We have tried to replace a "non-clogging Submersible" pump that has been in service for 20+yrs and are experiencing catistrophic failures. The new pumps are the same rating as the old (as far as nameplate data goes) and nothing has changed to the electrical system. The...