How to Flush a Tankless Water Heater

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Introduction: How to Flush a Tankless Water Heater

Calcium and lime can build up inside tankless water heaters.  They should be flushed once or twice a year with vinegar.  This video shows how to do it.

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    Nice instructable, thumbs up, well done without any messy disassembling . Thank you for the solution i'm gonna do the same on mine water heather using a spare fish tank filter pump and I'll add the two valves too.