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 lifespan of patients with Alzheimer's disease is generally reduced, although a patient may live anywhere from 3 - 20 years after diagnosis. 2. The final phase of the disease may last from a few months to several years, during which time the patient becomes increasingly immobile and dysfunctional.