Emergency Prep Info - March 2010 - Water Storage and Purification

Water Storage Guidelines

A normally active person needs to drink at least two quarts of water each day. Hot environments can double that amount. Children, nursing mothers and ill people will need even more. You will also need water for food preparation and hygiene. Store a total of at least one gallon per person, per day. You should store at least a two-week supply of water for each member of your family.

If supplies run low, never ration water. Drink the amount you need today, and try to find more for tomorrow. You can minimize the amount of water your body needs by reducing activity and staying cool.

Commercially bottled water in PETE (or PET) plastic containers may be purchased. Follow the container’s “best if used by” dates as a rotation guideline. Avoid plastic containers that are not PETE plastic.

If you choose to package water yourself, consider the following guidelines:

Containers:
Use only food-grade containers. Smaller containers made of PETE plastic or heavier plastic buckets or drums work well. Store containers in a cool dark place. DO NOT store in direct sunlight. Polyethylene plastics (prepackaged milk and water bottles) are somewhat permeable to hydrocarbon vapors. Keep away from stored gasoline, kerosene, pesticides, or similar substances.

Clean, sanitize, and thoroughly rinse all containers prior to use. A sanitizing solution can be prepared by adding 1 teaspoon (5 ml) of liquid household chlorine bleach (5 to 6% sodium hypochlorite) to one quart (1 liter) of water. Only household bleach without thickeners, scents, or additives should be used.

Do not use plastic milk jugs, because they do not seal well and tend to become brittle over time.

Do not use containers previously used to store non-food products.

Water Pretreatment:
Water from a chlorinated municipal water supply does not need further treatment when stored in clean, food-grade containers.
Non-chlorinated water should be treated with bleach. Add 1/8 of a teaspoon (8 drops) of liquid household chlorine bleach (5 to 6% sodium hypochlorite) for every gallon (4 liters) of water. Only household bleach without thickeners, scents, or additives should be used.

Storage:
Containers should be emptied and refilled regularly.

Store water only where potential leakage would not damage your home or apartment.

Protect stored water from light and heat. Some containers may also require protection from freezing.

The taste of stored water can be improved by pouring it back and forth between two containers before use.


Water Purification Guidelines
If your water supply is not known to be safe or has become polluted, it should be purified before use. Water purification is generally a two-step process.

Step 1: Clarify
Cloudy or dirty water must first be made clear. It may be passed through filter paper, fine cloth, or other filter. It may be allowed to settle and the clear water on top carefully drawn. Filtered or clear settled water should always be disinfected before use.

Step 2: Disinfect

Boiling Method
Bringing water to a rolling boil for 3 to 5 minutes will kill most water-borne microorganisms. However, prolonged boiling of small quantities of water may concentrate toxic contaminants if present.

Bleach Method
Adding 1/8 of a teaspoon (8 drops) of fresh liquid household chlorine bleach (5 to 6% sodium hypochlorite) to every gallon (4 liters) of water will kill most microorganisms. Only household bleach without thickeners, scents, or additives should be used. The use of bleach does not address toxic contamination.

The U. S. Environmental Protection Agency Web site provides additional information about water purification.

Commercial Water Filters
Commercial water filters can effectively filter and purify water contaminated with microorganisms, toxic chemicals, and heavy metals. Their effectiveness depends on design, condition, and proper use. Water filters produced by Seychelle have been used successfully by Church missionaries for many years.

Water Purification tablets can also be bought for cheap and stored easily. They will help you to purify water in an emergency.

Emergency Outdoor Water Sources
If you need to find water outside your home, you can use these sources. Be sure to treat the water first. Additional sources include:

Rainwater Streams, rivers and other moving bodies of water Ponds and lakes Natural springs Avoid water with floating material, an odor or dark color. Use saltwater only if you distill it first.

You should not drink flood water.

Hidden Water Sources in Your Home
If a disaster catches you without a stored supply of clean water, you can use the water in your hot-water tank, pipes and ice cubes. As a last resort, you can use water in the reservoir tank of your toilet (not the bowl).

Do you know the location of your incoming water valve? You’ll need to shut it off to stop contaminated water from entering your home if you hear reports of broken water or sewage lines.

To use the water in your pipes, let air into the plumbing by turning on the faucet in your house at the highest level. A small amount of water will trickle out. Then obtain water from the lowest faucet in the house.

To use the water in your hot-water tank, be sure the electricity or gas is off, and open the drain at the bottom of the tank. Start the water flowing by turning off the water intake valve and turning on a hot-water faucet. Do not turn on the gas or electricity when the tank is empty.
If there is an emergency--think! Fill your tubs and sinks with water. They can hold and store water too.

Using Swimming Pool Water
You should always view your pool as “backup” water; keep the water treated; you never know when it will be needed! The maintenance of the free chlorine residual will prevent establishment of any microorganisms. The maintenance level should be kept about 3-5ppm free chlorine. (See Water Purification for detailed information on purifying pool water.) If other stored water stocks are not available, remove the necessary pool water and boil it or just treat with chlorine to the normal 5ppm. It is best to err on the side of caution.

Covering the pool at all times when not in use is a very good idea. Try to keep the cover clean and wash the area you put it on when removing it from the pool.