I guess he meant RPM. I doubt the LET would have any major problems, but i'd go for the cast metal or plastic impeller over the folded metal anyway.green manalishi said:no, you get cavitation on the vanes of the pump
Cavitation is caused by too high RPM of the impeller, cavities emerge (air bubbles) and essential it stops pumping and just makes a lot of turbulence.Dave Hay said:cavitation is a result of a drop in pressure though??
does the water flow that quick/change temp enough??