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 causes worsening dementia symptoms as a result of its progressive destruction of a person's brain cells. Because Alzheimer's usually progresses slowly, a person with the disease may experience a gradual decline in cognitive abilities over a period of seven to 10 years, according to the Mayo Clinic.