Ack. we're planning to fill the tubs and all the five-gallon buckets we have, with water for the toilets. We also have a 21' round swimming pool, which if it doesn't get destroyed, will be another source of toilet water. we're on well & septic, not town water, so we're on our own. My generator's a portable one with no transfer switch, so if we lose power, we lose running water.
Shut off the filter before the storm hits. It will save wear on the system from debris blowing into the pool.
Get yourself some 8awg 3 wire cable from Home Depot, install male connections at both ends. When the power goes out, shut off your main incoming power. Then plug in your generator to any wall outlet of your choice. You’ll be limited by that circuits amperage rating going through that single breaker into the panel. If you have 220v dryer then you could probably run half the house goin through that circuit to feed the panel. Just FYI
Too late now, but 8awg 4 wire from an exterior outlet (keeps CO out) to a 40 amp breaker in the box is more direct. A 220 dryer circuit is probably 30 amp which limits you a bit but should still run the well pump with a male to male cable. Neither is even close to electrical code and I am not an electrician so for legal purposes this is not advice. Code is a transfer switch installed by a professional.
Either way, for the weather you're expecting you may need to rig some kind of cover for your generator to protect it from the rain. Last thing you want is the generator shorting from water in the wrong place.
Good luck whatever happens.