[jakewilcox]

You drain it when it goes bad and you need to change it.....

My peeve is when they get installed nipple up. I install my dom. hot exp. tanks nipple down, preferably hanging on rod if they have the nut welded to them.

Preaching to the choir, that.

 

[jakewilcox]

the valve is a good idea but we rarely see them...and I dont care to do that neither
I have gotten some calls where the expansion tank tricked the owner into thinnking that
their main water shut off to the home was broken because the expansion tank kept
pushing water through the lines for about 4 minutes or more....
I suppose the expansion tank could literally flood the shi/ out of a house before it finally
loses pressure

What the f are you talking about? An expansion tank had flow for four minutes? On a water heater at a house?


This ought to be good.