Why vaccinate adults against hepatitis B? Hepatitis B can lead to cirrhosis, liver cancer and death. Hepatitis B is incurable. Up to 1.4 million Americans have chronic HBV infection. Hepatitis B is 50 to 100 times more infectious than HIV.
Re: Pool about to overflow from heavy rain dunno of this works, but try this: put one end of a hose in the pool, the other in a lower part of the garden. Now you need to suck on the hose (the side outside the pool) untill water starts running, normaly, the water will drain.
Fill the pump with water. Put lid back on. Turn the pool on. Let air out of the filter. Note that all the examples shown are for pools as the same level as the equipment. If your pool is below sea level you will have to stop the water by closing a ball valve or other valve or stick a Tennis Ball in the pool skimmer.