[Jims5543]

Tip:

Put about 5 check valves in every air tube coming out of the tank. This way you would need 5 to fail in order for it to leak out.

I am also considering putting the air bubbler on a backup battery like you use for your computer, just in case. I have the whole house on a back up generator now but there is always the chance that could shut down too. This would buy me time.

After the hurricanes I lost no fish, I ran the bubbler off a car battery with an inverter for days on end.