4" brass pipe attached to the tank protrudes through the opening where the old plastic drain was.
The elbow attaches to the 4" pipe and the reducer converts to 1/2" and attaches to the Sharkbite fitting.
A 1/2" section of pex connects the Sharkbite fitting to a Sharkbite ball valve and elbow.
Now I can easily reach the valve to drain the tank. and The drain system is now 3/8" to 1/2" which should allow it to drain faster than the old 1/4" valve. It should also be more durable since it's all brass. The Sharkbite fittings really make this arrangement possible because there isn't enough space to spin on other types of fittings or valves. The only downsides I see, so far, are I lost the most convenient place to position my floor jack (between the wheels) and there is now a section of water line exposed to the cold.