Technology

SNAKE Introduction

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In April 2010 SWIM began designing a system that would allow for continuous chlorine production. Utilizing a salt brine tank, a series of floats, and a chlorine holding tank the "SNAKE" was born. Chlorine is produced through this system and then drawn into the city water supply. As the chlorine is consumed from the holding tank more is automatically produced through the SNAKE.

Four systems have now been installed and are being monitored daily. Greg, Rich, Rafael, and Earl placed two in Nicaragua during the first week of August, 2010. One is serving 2,000 people in the San Rafael area. The other is positioned on the mountain side above the community of San Marcos. A water tank of 32,000 gallons is treated with chlorine benefiting 1,900 people residing there.

In October, 2010. Greg and Earl installed a third system in Columbia at the request of Latin's United from Omaha, Nebraska. This system is providing chlorination to 3,000 residents of the area.

In June, 2011 the fourth system was installed in Santa Clara, Nicaragua. Located in the far northern region, this unit is providing safe water for about 2,000 residents.

Depending on the water quality of the area this system is capable of providing a continuous chlorine supply for communities of 8,000 to 10,000 people.

Why Chlorine?

The technology used by Safe Water International Ministries to transform unsafe water into potable water is safe and effective. Our Chlorine Producing Units (CPU) use the process of electrolysis to create a concentrated chlorine solution. This solution is then added to unsafe water as a purifying agent. On a small scale, chlorine can quickly and safely be manufactured in even the remotest of areas with just 3 components:

Water
Salt
Electricity

With a 12 volt battery to provide the electricity and a small amount of salt, enough chlorine solution can be produced to purify the water of a family or a small village. For example, a 5 gallon bucket of contaminated water requires only 2 Tablespoons of concentrated chlorine solution to be safe to drink. A 1500 gallon storage tank requires approximately 1 liter of solution.

Chlorine has been used in the United States for over 90 years to purify water from bacteria and parasites. The CPU manufactured by S.W.I.M. volunteers is a portable and affordable way to bring this life-saving technology anywhere in the world!

CPU Kit

The CPU can be obtained separately or in a small tool box kit which includes an instruction card, a chlorine test kit, 2 mixing bottles, a salt measuring cup, and a couple of solution droppers. If you have a 12 volt battery, this is all that is needed to make endless supplies of chlorine solution to disinfect large amounts of water and make it safe to drink.

CPU Instructions

The CPU (Chlorine Producing Unit) is a simple device with no moving parts and nothing to wear out.

Connect it to a 12 volt power source and pour a saltwater brine through it to produce a chlorine solution similar to bleach. This solution can then be safely used to disinfect small or large quantities of water. There are no harmful by-products except for the gas produced during the process that you should avoid breathing.

Mix about 1/8 cup of salt in a 16 ounce bottle (60ml salt to 500ml water). For startup we include a small measuring cup and plastic bottle to use that are correct sizes. After a vigorous shaking to mix it well, pour the solution through the CPU into another bottle while it’s connected to 12 volts. It only takes

Hand Held Chlorine Producing Units

For a relatively small donation, our units are available for use and distribution by missionaries and disaster relief agencies.

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