"Don White" wrote in message
news:OgEWg.3103$cz.46967@ursa- Yup. A local dealer at a boat show told me
it should be done every
second year (depending on use).

Every second year at MOST. Every year to be really safe.

I killed a new impeller this year from April to Sept. I mean killed dead,
as it it stopped peeing at low RPM and the impeller was toast. A lot of
sandy / silty water will wear one out FAST.

-W