"Karl Townsend" wrote in message
anews.com...
How about a VFD?

A 3600 RPM 5 hp. may be hard to find. I'll start shopping eBay for a 5hp.
VFD. Didn't really want to put this much $ into this job though.

Karl




A 3450 RPM should be easy to find, and work well enough. The 150 drop in RPM
will not affect the GPM enough to notice. Plus you not need the VFD.
Greg