More water info:

Water is so hard to store and needs so much room, but all the food you store means nothing if you can't have water. Here is my plan, not great but it is what I can do. I have been saving 2-liter soda bottles for a year from our family and friends and have over 100 that are not being used at this point.

Clean them like mentioned above, except you don't need to let them dry out. Fill them with water and put in a drop of bleach, seal and label with the date you filled. Because there is a worry about the plastics, even so called safe ones leaching harmful chemicals into the water, many only store their water for 6 months. I have done enough research that I will store ours for a year or two.

If you do not have a dropper for putting ONE drop of water, you can do what I do. I put a little bleach in a 1/4 cup and dip a thin wooden dowel or skewer in and let it drop one drop into the bottle.

Stored water goes flat and doesn't taste good. When you first open a container of water that has been stored for a year or so, pour it back and forth between two containers to add air back into it. This improves the taste big time!

3.79 liters = 1 gallon, so you have a bit more than a gallon with two 2-liter bottles of water. 50 gallons of water means 100 bottles of 2-liter size, tons of room needed. You can lay they on their sides and stack up.

Note: the bleach needs to be regular house hold bleach with no scents
added and not the splash-less kind either. Just plain old fashion
bleach.

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The next thing I have planned for water is rain catching from my roof. My roof is asphalt and dangerous to collect water off from all the chemicals it will leach so I bought several rolls of plastic drop cloth from Home Depot. It is cheap and you will always need some for something, so make sure you have several extra rolls. I plan to cover my roof before a storm comes in, and make sure the gutters are still cleaned out.

Barrels will be on both ends of the house to collect the water. Take off the bottom end of the down spout and adjust so it goes straight into the barrels. You will want to let the first bunch of rain flow out, just to make sure you are getting clean water.

The web is full of ideas on how to do this, here is one: www.wikihow.com/Build-a-Rainwater...ion-System

If you have acid rain, you can make a two or three part filtration system, letting each barrel trickle down thru sand. Again there are many web sites about this and I will let you do a little research there.

It would be smart if you live in an area that doesn't have natural sand in your soil, to get several bags of "play-sand" so that you can filter your water when shtf.

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Get a water bob for your bathtub.
www.amazon.com/Aqua-Pod-Kit-Emerg...ge+bladder

www.waterbob.com/Welcome​.do;jsess...FA67F4C3EC
FYI, the above site is out of stock as were two other sites I went to.

I have seen them at only $17 so they are cheaper than the one above but ti gives you an idea what I am talking about. 65+ (most will hold 100 gallons or more) gallons of clean drinking water is priceless!!!