Ran my pump dry for about 2 1/2 hours yesterday with no apparent damage. (crossing fingers)
Forgot to reset the valve to "filter" after draining off some water yesterday morning, so when the timer kicked on for the day it was still set to "waste"!!! Needless to say, it drained as much as it could then ran dry the rest of the time. On top of that I had the Polaris set to come on with the main pump, so the booster pump ran dry as well. Good thing the timer was set to run for only 3 hours!
This morning I turned on both pumps, preparing for the worst, but to my surprise there doesn't seem to be any damage. Both pumps operating normally, filter pressure normal, no strange noises, no water leaks. If any damage was done, wouldn't it have been apparent right away?