Then the ones who pleased the Lord will ask, "When did we give you something to eat or drink? When did we welcome you as a stranger or give you clothes to wear or visit you while you were sick or in jail?"
The King will answer, "Whenever you did it for any of my people, no matter how unimportant they seemed, you did it for me." .......Matthew 25
Friday, December 9, 2011
Saturday, November 5, 2011
When we built the floating school at Boeung Rial, we never realized how God will eventually use the school.
The recent floods have pretty much driven the villages from there homes.The flood waters have risen the water levels so that there few areas left for the villagers to deploy their homes. We visited the small cluster of homes that had managed to find a shallow strip of land. Even so, the villagers shared that they were scared to remain in their homes at nights when the winds were strong. A few families had sought refuge in the floating school, which for them represented the only stable, safe and secure refuge from the rains and floods. School had essentially ceased during this time because the teachers have been unable make the trip in to the school.
Swee Oon will be pleased to learn that the floating school is finally really floating in about 4 metres of water.
We are starting the slow process of well disinfection in the Baray vicinity as the wells become uncovered. The following describe how such disinfection can be carried out. It is not a precise method but is probably adequate, and better than doing nothing. We used similar methods in the 2000 flood, and found it quite effective.
Pump 5.5hp pump with 10m of tubing
Chlorine powder S70 (calcium hypochlorite ~70%) - be careful as concentrated chlorine can be corrosive
Knotted rope at 10cm intervals
2 or 3 helpers
1. Pump out as much well water as possible. The less water remaining, the less chlorine you will need. It will not be completely drained as water will continue to accumulate while you pump. Just do the best you can.
2. Measure the depth of remaining water. You can do this using a rope tied to a weight. The rope can have a painted mark, or a knot every 0.1m.
3. Estimate the amount of chlorine to be used ( according to the Table below). The amount will depend on the depth of water and the diameter of the well.
4. Mix the chlorine powder into a large pail of well water.
5. Pour the mixture into the drained well, and try and stir using a long pole if possible.
6. Cover the well with a plastic sheet.
7 Leave the well covered for about 24 hours (meanwhile, DO NOT USE THE WELL). During this time also do not try to enter the well as the chlorine fumes may be overpowering and toxic.
8. The next day. Pump and empty the well again, as much as possible. Again, be careful of chlorine fumes which have accumulated in the closed environment of the well.
9. Let the well water re-accumulate naturally over the next 24 hrs
10. The well should now be able to be used, if the strong smell of chlorine has disappeared.
The following Table gives the approximate amount of Chlorine powder to be used depending on the diameter of well and depth of residual well water. For example: if well diameter is 1.5m and depth 0.5m, it will reference cell "I10", which is approximately 16 tablespoons.
Friday, October 21, 2011
For those reading in Cambodia, here is an option that can be used. Water can be disinfected using household bleach. I am not sure how available this is in the villages, but it will definitely be more accessible than commercial water purifier tablets.
1. Get hold of standard simple household bleach. Non-perfumed. Not the specialty types. It should say approximately 5-6%.
2. Filter the water source. Can just use a double layer of the Cambodian krama. This is just to get rid of as much mud, sand and debris as possible.
3. Disinfect the water using the bleach. The amount of bleach used is approximately a quarter of a teaspoon for about 4 litres of water. This should be approximately a standard 10 -12 inch diameter pail filled to about 10-12 inches high. Stir the water well and let it stand for about 30 minutes. There should be a bit of the chlorine smell, but not too strong. If too much chlorine smell can just agitate the water by pouring pail-to-pail. After a while it should be ready to drink.
This is a very crude process, so don't expect any accuracy here in generating the correct concentration of chlorine. The bleach is relatively safe and non-poisonous when used this way. The important thing is that it is an accessible, affordable, low tech way of obtaining reasonably disinfected water for daily needs.
Friday, April 22, 2011
Saturday, April 9, 2011
Friday, April 8, 2011
Thursday, April 7, 2011
Tuesday, April 5, 2011
Monday, April 4, 2011
Friday, April 1, 2011
Thursday, March 31, 2011
Wednesday, March 30, 2011
There is an interesting tale to be told about the small village of Peam On Chaan. But that's a story for another day, if you would invite me out for coffee.... :)