Re: Onan Water Pump

Alan Leslie

I replaced the original Onan pump with the Sherwood some years ago.
It has a one piece casting instead of a detachable end plate.
I thought its construction may help to extend the life of the impeller.
At that time I also changed to run dry globe impellers....they didn't make any difference...the impellers where still failing at around 170 hours.
But at the last change I put in a standard impeller and it's up to 240 hours now!
Is that just luck? I don't know...I don't think anyone else does either !
Elyse SM437

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