You might want to get a hold of Pat Culkin. He might be able to give you a bit more insight on this. I'm *pretty* sure that the Ed Peters tapes refer to doing this to either pump, but I haven't watched them in years and mine are in storage, plus...same issue...no VCR! LOL

A lot of guys are using electric water pumps, which are more or less constant rpm pumps, so I really don't think this is that huge of a deal, but I could be proven wrong. I hope not! I planned on doing it too, until I can set-up an electric water pump myself.