For some homeowners, having a backup battery for their sump pump is important for making sure a loss of power doesn't cause a flood in the basement. And if you have yourself a standard new Basement Watchdog sump pump battery backup, before you can use it, you have to fill it up with the right amount of fluid. These batteries do not come with the fluid already inside, because it lessens the life of the battery. This video will show you the precautions and methods you should take in filling each of the six cells to the right fluid level.
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