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.
The progression of Alzheimer Disease varies from person to person and can span three to 20 years (the average length of the disease is between eight and 12 years 1). The progression can be described as a series of stages, providing a guide to the pattern of the disease, which can help when making care decisions.