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.
1 Remove the leaves and debris from the pool cover with a leaf net and/or skimmer net. Pump off any excess rain water with a submersible pump. If an above ground pool, the excess water may be siphoned off instead.  Remove cover. Try to minimize the amount of water and/or debris that gets into the pool water.