Folks, if you've recently upgraded or renewed your annual club membership but it's still not active, please reach out to the BOD or a moderator. The PayPal system has a slight bug which it doesn't allow it to activate the account on it's own.
Here is my storm set-up - two marine deep cycle 12 volt batteries and a 1000W inverter. Can run heater for a while on this set up if need be. Not sure how long it would last with just pumps, but I think well past 24 hours.