Getting it off was easy. I used a socket with an extender and uni joint. Putting it back on was a bit more of a task. I used a bit of hose and attached it to the valve. I held the valve in place with my fingers. This was just to get it started. After it was started I just slipped the socket on it again tightened it up. It took a bit of time but worth not tearing down the top components.

I am a walrus.