water tanks-how long will full tanks last

[NeilV]

Taking a dip in the lake or stream can help shorten shower time too or even possibly eliminate some.

[Mr_D]

We have 110 gallons of fresh water, never stayed out long enough to use it all.

[WeatherTodd]

I can go 10 days on 80 gallons of fresh water. Any wimmen or teens... lasts a day if that.
I dont drink or cook from the storage water (preference)
Can do a daily "navy" shower.
One sink full of dishwash soap for the duration.

[garym114]

If you want it to last a week you have to learn how to save water. The greatest saver we found was how to use the water heater when taking showers. We turn the water heater on when getting ready to take showers and turn it off when the water gets warm. Then we only have to use the hot water for the shower, no trying to mix it with cold to try to get the right temp.
We can last 7 days.