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FW tank cleaning(How to do the lime wash).
1. Risk assessment as per coswp
2. Make the tank empty
3. Open and ventilate thoroughly
4. Check the atmosphere and issue entry permit
5. Thoroughly clean by superchlorination with 50 ppm chlorine solution dissolved in fresh water
6. Remove sediment and dirty water
7. Continue ventilation throughout operation.
8. Monitor atmosphere continuously
9. Personnel involved must use clean clothes new boots and PPE
10. Any person having skin disease must not do the cleaning
11. Clean the tank with lime water using kew machine
12. After cleaning and drying can be painted, coated with suitable coating for fresh water tank – solvent free pure epoxy paint
13. Allow to dry completely and make it odour free
14. Fill the tank and exchange water a couple of times to reduce health risk
15. Finally before consumption test the water with test kit
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