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Welcome Bio-Sand Water Filter Project

The Project Of "Help Us Build Ministries- Trust

About Bio-Sand Water Filter

How It Works

How To Use & Take Care

Bio-Water

About

Bio-Sand Water Filter

Clean water project of "Help Us Build Ministry Trust"

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There are over 600,000 villages in India.  Most villages do not have a clean drinking water supply. They use pond water to drink. The same water is used to wash clothes, animals and various other purposes.

 

The water is highly contaminated and when people use the same water to drink, many are sick and many children are handicapped when born.

 

Besides church planting, we have Water Filter Project to help the people have clean water to drink. This Project has already changed their lives and we could reach them with the love of Jesus Christ.

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 A team from ‘City church’ makes Bio-sand water filters which purify contaminated water. It costs 25 USD; Bio-Sand Water Filters are capable of removing more than 97% of the pathogens from the water.

 Each village has about 3000 families’ approximately 15000 people; we have been able to help about 30 families with 30 water filters, but there is an enormous need to help these villages with clean water facilities.

  

    20th march was world water day, on this day we distributed 6 water filters. This was a very exciting time for us because of the potential for the need for water filters, especially in villages. Several of the men from city church trained are now capable of training others so that expansion into other nation is a definite possibility.

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On the 15th of April, 2011, we distributed 25 water filters free of cost to the HIV +ve people.

How it works

How a Bio-Sand Water Filters Works

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How to use

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How to Use and Take Care of The Bio-Sand water Filter

How to Use:

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  • Use the filter daily- this will maintain the water level 5 cm above the sand (measured during the

  •  pause period) and keep the bio- layer alive.

  • Ensure water quality is from the best possible source. Always use the same source if possible.

  • If water very dirty allows the water to settle for 24 hours then pour the clear water

  •  through a fine woven-cloth (folded many times).

  • Ensure the receiving container is clean

  • Add 1 to 5  drops of bleach for each liter (or up to 1 teaspoon per gallon)- for example, if

  •  the container is 20 liters then add at least 20 drops.

  • Remove the filter lid

  • Slowly pour contents of the bucket into the filter, without letting the sediments, and then replace the lid.

  • When filtration is complete, cover receiving a container.

  • Repeat the process at least once a day.

  • Clean the spout daily.

  • Do not store food on the diffuser plate.

  • Keeps animals away from the spout and filtered water.

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How to Take Care of:

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  • Location - Protected from the weather (dust & wind), birds, animal, mosquitoes and insects.

  •   Placing the filter indoors is preferred.

  • Level - Filter placed on a level spot- even floor, not slanted, no bumps.

  • Leaks or Cracks - Drips of water or wet spots under the filter will indicate a leak in the concrete box.

  • Lid - Clean on the outside and inside; no rotting wood parts; tight fitting but not sealed.

  • Diffuser - Clean regularly; sand under diffuser should be level and smooth; rotten wood should be replaced;

  •   diffuser should rest securely on the lip. This should be approximately 5 cm ( 2”) above water level.

  • Sand Level  - The surface of the sand should be 5 cm (2”) below the water level.  Contact your technician

  •  to add (or remove) sand if this dimension is not correct; the sand should be smooth and level.

  • Spout - Clean daily; eliminate any direct human and animal contact with spout and filtered water.

  • Receiving Container - 5-10 cm (2” - 4”) – a small opening will prevent contaminants from entering the

  •  container that now hold treated water.  Sanitize the container frequently (every second day) by washing

  •  it with soap and water or with a chlorine cleaning solution. Ensure the container has a lid. Do not scoop

  •  water out of receiving container. It is best to pour the water out. 

  • Flow Rate - Measure the outlet flow rate from the spout when filter reservoir has just been filled with

  • water; 1 litre/minute  (1 quart/minute) is the design rate for the standard concrete filter; if the flow rate is less

  • than about 0.3 litre/minute (1/3 quart/min), clean the sand in the filter by using the “swirl and dump” technique.

Swirl and Dump  

 

  • Remove the lid to the filter;  remove the diffuser 

  • “Swirl” your hand,(up to the first knuckle), or an appropriate tool,(5cm deep), around in the water at

  •  least 5 times. You will disturb the surface of the sand but don’t mix the surface layer below the

  •  top 5-10 cm of sand. The water above the sand will become dirty.

  • Scoop out dirty water with the small container (i.e. cup or cut open plastic pop bottle) Avoid scooping out sand.

  • Throw out dirty water outside the house in an appropriate location

  • Repeat this until all the water has been removed from the filter

  • Replace diffuser

  • Add 20 litres or 5 gallons of water- replace the lid

  • Check flow rate

  • Repeat if flow rate is still low

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