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Top 5 Ways of Purifying Water

Water Purification Methods

How to Make Collected Water Safe to Drink

LifeGuard 7 Gallon Water Container Even if you have a long-term source of stored water, it’€™s still a good idea to have multiple ways of purifying water. You should at least have one alternative purification method just in case something happens to your supply or the emergency lasts long enough for you to run out. There are 4 basic methods used to purify water, and different styles for each way.

Regardless of which method that you choose, you can make purifying your water easier by letting the water sit for a day after you’€™ve collected it so that all the sediment in it can settle. Then you can just pour or siphon the water off the top and use the rest for tasks that don’€™t require potable water.

Heating

One of the first and most well-known ways of purifying water, or anything else that you’€™re going to drink such as milk or juice, is to heat it. There are 2 primary ways to kill bacteria and other impurities in your water so that you can drink it safely.

Distillation

This method uses a ton of fuel but produces extremely pure water. It requires boiling the water in an enclosed container and using a hose or other transportation device to allow the steam to escape, convert back to water, and collect in a clean container. Distillation is highly effective but also one of the more complicated ways of purifying water.

Boiling

This is the surest way to sanitize your water but it may not be realistic if your energy sources are limited. If you opt to boil, it takes anywhere from 3-12 minutes depending upon your elevation to kill pathogens and you’€™re going to lose part of the water to condensation. For most elevations, 3-5 minutes will suffice but the higher you are, the longer you need to boil it because water boils at a lower temperature at higher elevations. If you choose to boil your water, do so when you’€™re cooking or doing other things that require fuel in order to save as much as possible. Again, this is one of the easiest ways of purifying water as long as you have a heating source.

Pasteurizing

Heating your water to 160 degrees for a minimum of 6 minutes will kill pathogens and parasites in water. This uses less fuel than boiling or can even be performed using solar heating devices that you can make at home in a pinch.

Chemical Treatment

AquaPail Water TreatmentTreating your water with chemicals that kill bacteria, viruses, parasites and other impurities is probably the best way to ensure that it’€™s safe to drink. The downfall to using chemicals is that you can often taste them in the water. You also need to know how much to use because if you use too little, it won’€™t purify the water but if you use too much, it can make you ill. Unless otherwise stated, you should let your water sit for at least 30 minutes in order to give the chemical time to work. 

Chlorine Bleach

This is just standard household bleach (sodium hypochlorite) and is an integral part of your emergency supply kit because it kills everything. Use the unscented kind and simply add 16 drops (1/4 teaspoon) to 1 gallon of clear water or 8 drops (1/8 teaspoon) per gallon of clear water. Rotate your bleach because it begins to degrade after 6 months or so.

Iodine

Though it changes the color and taste, 2% iodine tincture can be used safely and effectively to purify water as well as clean wounds. Use the same amount of iodine as you would bleach. Iodine kills bacteria and viruses but is only moderately effective against disease-causing protozoa. You can also buy iodine tablets.

Calcium Hypochlorite

Also known as Pool Shock, calcium hypochlorite has no expiration and doesn’€™t lose effectiveness. It’€™s also extremely inexpensive. For about $5 you can get enough to treat 10,000 gallons of water. Make sure that you buy a brand that only has 73% or greater calcium hypochlorite and inert ingredients; no other chemicals or algaecides.

Make a solution using ½ teaspoon dry granules to one gallon of water and label this poison. Dissolve the granules in the water and then use 1/8 cup of the solution per gallon of water. This has about the same germ-killing power of bleach as it’€™s just an alternative chlorine product. 

Chlorine Dioxide Tablets

These are a modern solution to water purification. They work well to kill all of the bad stuff in your water without adding any bad taste or smell. They’€™re also portable and have no expiration date. The downside is that they take 4 hours to purify your water but they are extremely effective as well as being easy to store and portable.

Mechanical Filtration

Mechanical filtration may be used independently or in conjunction with either heat or Katadyn Pocket Microfilterchemical purification methods. The concept is simple: the water runs through a medium such as sand, charcoal, silver, and/or ceramic that strains out debris and contaminants. They come in many different forms including:

  • Personal devices such as water bottles
  • Point-of-use filtration that’€™s attached to your sink
  • Hand-held pump devices
  • Homemade devices built to meet the filtration needs of the user
  • Commercially-produced units that are created to meet water needs when municipal water isn’€™t available. These come in different sizes and styles as well.

Of the top 5 ways of purifying water, this is the easiest and most effective.

Ultraviolet Light

There are several different types of water purification devices that use ultraviolet light to kill pathogens in water. In order to use this method effectively the water needs to be clear. Homemade versions can be found all over the internet. UV light treatment doesn’€™t kill viruses. Among the various ways of purifying water, this method is the least effective in terms of killing all the harmful pathogens.

There are many different types of water purification methods and which one that you choose is entirely dependent upon your filtration needs. Some simply filter out impurities while others purify your water as well as most chemicals.

There are also reverse osmosis machines available but they’€™re not really efficient in an emergency because they depend upon high water pressure to be effective. They’€™re a great way to conserve water on a standard daily basis though!

Do you have any ideas that we haven’€™t touched on? Let us know about it in the comments section below! Download our comprehensive water guide.

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