Has anyone ever attached a flow meter to the raw water line just before
discharge? I would think if you could get a baseline reading with a new
impeller or go by the flow rate of the pump at a given rpm then if it drops
it would indicate an impeller change or it would aid in diagnosis of an
overheating condition. Maybe even a remote display. My pump is supposed to
produce 26 gpm @ 1800 rpm. I have no idea what the output really is.
Any thoughts?

Phil