leave in or keep out water heater plug winterizing?
I tried searching but a simple question. after draining HWH do you replace the plug or leave it open? Thank you in advance
Forum Discussion
tn terry t wrote:I think he was referring more to the water tank.
same reason the BRASS t and p valve doesn't rust also the ball in the valve is stainless
Suburban heaters have glass lined steel tanks, and there is an anode rod to protect the tank from galvanic corrosion (should any cracks develop in the glass lining). Attwood uses aluminum surfaced tanks, which don't require an anode rod, normally.
If you have a Suburban heater, removing the anode rod can result in premature failure of the tank. If you have an Attwood heater with a brass valve, then there's also an issue - putting in a brass valve will create galvanic corrosion with the aluminum tank, unless the connection between the two is insulated (e.g. with a plastic nipple).
