Why does Dean Ambrose usually represent The Shield in singles competition?
Ventilate the room and then reset the alarm. The batteries only last 6 months at the most and a lot less after it has alarmed. Write the date on the batteries when you change them so you know exactly when they were changed.
Fire hydrants are normally connected to the same city water supply as your kitchen sink. However they're probably not kept up as well, so I wouldn't recommend drinking form them. I doubt anything bad will happen to you though.
