Customizations / mods to the Freelander 21QB
I am starting a thread for my mods to a 2016 21QB: 1: Added spare tire and jack
Forum Discussion
rockfishon wrote:
I installed a quick drain on the water heater. Camco 11703 1/2" Water Heater Drain Valve
Rocky,
Be aware that your water heater tank is aluminum and your drain valve is brass. There is galvanic action, precipitated by the water, between those two dis-similar metals.
Eventually, the brass plug or the internals of the valve will corrode away and the brass drain plug WILL leak. When is largely dependent on the quality of the water you come across. For example, distilled or de-ionized water has no free electrons, thus will not corrode.
Galvanic action is why NEW water heater tanks have a plastic drain plug.
Tim
