Things you will need during the Zombie Apocalypse: #1 Water

Mmm tasty bathroom stall water

Water is essential to life. A person can only survive a few weeks without something to drink, that is provided they are doing no physical labor or running from zombies. Unless you wanna Bear Grylls it and drink your own urin then I suggest you find a water source as soon as possible. The first source should be your home. During a disaster you should fill your tub, sinks and any containers you might have with water before it stops flowing or becomes contaminated. You might also want to clean your tub if you like to do crazy stuff in there or get a WaterBob. Given the opportunity drinking bad water is better then dying waiting to find clean water, however if there is no rescue in sight I would hold out for clean water as drinking contaminated water can make you very sick.

Before the tub is empty you will need to find a second more sustainable water source. A pond, stream, river or ocean can be a good water source as long as you can build a fire and boil the water or have water treatment tablets . Salt water should only be drunk it if you can distill it. Never drink salt water without distilling it, simply boiling it wont remove the saline in it and can actually make it more concentrated. Using the same meathod as distilling moonshine you can boil water in a can and then capture the steam in a long pipe. As it cools it will turn into drinkable water. Use the below diagram to make your own!

Mathmatical!

So stuff you will need: 

1. A container - Something that you can heat up over and over, preferably with a lid of some type that you can screw on or seal up tight. In this case you can use a soda can if needed.
2. Water - Salt water is best once distilled because the saline does not go into the steam. You can also purify dirty water this way if you do not have a coal or sand filter. I would not do this for water that has been contaminated by oil, gas or other chemicals... just don't drink that stuff.
3. Fire - Build a small fire for your container to rest over so that the water will boil.
4. Hose - PVC hose, garden hose, copper pipe or anything that you can use to allow the steam enough time to cool as it escapes the container.

Take the container and add some water. Don't fill it up otherwise it will take a long time to come to a boil. 1/4 full of water will be enough to start with. Attached your hose to the container in a secure way, you may have to modify your container by adding a hole to it to insert the hose. Build up a small fire using your Fire Starter on some dry grass and adding sticks to it. Build a platform with rocks or bricks around the fire for your container to sit on. You want the container to be over the heat but not in the fire so make sure the fire is not to big or it can cause your container to melt or crack. Add the container to the platform and wait for the water inside to boil. The steam will cool in the hose and condense back into water so make sure you have another container to catch it. This process can be time consuming but will be essential to life if you live near the coast.