Thanks for the video. Why do we have to empty the tank (cutting off water) instead of just letting the water run, for let's say, 10 minutes? It would flush the sediments without filling the air into it.
I'm glad you noticed. sometimes these set ups are for demo purposes and maybe far from code compliance to offer function to make videos. I think it has been corrected since by an electrician with a quick disconnect box. Or at least I hope :)
