undo t 5 bolts, remove lower unit, remove pump cover, slide old impeller off & replace with new one. Mske sure wesr plates & gaskets are good & replaced in correct order. put a little grease on top of unit & that's it.
The symptoms of Alzheimer's disease worsen over time, although the rate at which the disease progresses varies. On average, a person with Alzheimer's lives four to eight years after diagnosis, but can live as long as 20 years, depending on other factors.
Alzheimer's stages: How the disease progresses. Alzheimer's disease can last more than a decade. See what types of behaviors are common in each of the stages as the disease progresses. Alzheimer's disease tends to develops slowly and gradually worsens over several years.