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9. Run hose from hot water outlet to a drain.
10. Close the drain valve on the cold water inlet. Leave hot water drain valve open. Open cold water
inlet to flush with fresh water.
11. Allow water to flow out of the hose for 5 minutes to flush vinegar from the water heater.
12. Shut off cold water inlet valve. Remove filter screen and clean out any sediment. Reinstall.
13. Close the hot water drain valve. Open the cold water inlet and hot water supply valves.
14. Disconnect the hoses from the drain valve connections.
15. Restore power to the water heater and check operation.
Lime Scale Flushing Diagram (Fig. 13)
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