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INDICATIVE DOSAGES FOR CHLORINATING DRINKING WATER
DEPENDING ON THE CONCENTRATION PRODUCED BY WATA:
Volume of water to be disinfected
10 L 20 L 100 L
Active chlorine
concentration
per the WataTest
3 g/L 5.0 mL 10.0 mL 50.0 mL
4 g/L 3.8 mL 7.5 mL 37.5 mL
5 g/L 3.0 mL 6.0 mL 30.0 mL
6 g/L 2.5 mL 5.0 mL 25.0 mL
7 g/L 2.1 mL 4.3 mL 21.4 mL
W It is absolutely necessary to test for residual chlorine using the WataBlue
test 30 minutes after chlorinating your drinking water.
Only this test result will guarantee protection against waterborne
diseases.
EXAMPLE OF CHLORINATION FOR 20L OF DRINKING WATER
1
2 3 4
1
Using a small syringe collect 5 mL of your sodium hypochlorite solution.
2
Add 5 mL of sodium hypochlorite per 20L of plain water.
3
Shake vigorously (for chlorinating a water tank, add the sodium hypochlorite
to the half-full tank, then add the rest of the water).
4
Wait 30 minutes for the sodium hypochlorite to act and to inactivate the
microbes.
5
Test for the presence of residual chlorine using the WataBlue reagent.
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