Carver Cascade Water Heater Refurb Part 3

Hi Folks Part 3 - Heater now installed , on test run , fast drain plug failed , the o-ring deteriorated , many cycles of in and out , why I figured out problems etc . So Part 4 , final test run is waiting for new plug and o-ring to arrive ! Then all should be good . ON test run , burner firing up , working a treat !