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Flushing tankless water heater

299 Views 0 Replies 1 Participant Last post by  chandler48
I haven't seen it posted yet, and I am sure YouTube if full of them, but here goes. It is simple and required. It takes a transfer pump ($94), two washing machine hoses, 1- 5 gallon bucket and two or three gallons of white vinegar.

Turn off the power to the water heater, turn off the inbound water supply. On the water heater, turn off both the blue and red ball valves to keep the cleaning local. Open the caps and install the washing machine hoses. The blue goes to the top of the pump, and the red goes freely into the bucket. Pour in a couple of gallons of vinegar into the bucket and set the pump in it. Open the blue and red ball cocks behind where the hoses connect. Plug in the pump and let the vinegar circulate for about 45 minutes.

Reverse everything to get it all going again.


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