Thanks for the reply (that I suspected and really didn't want to hear!).

I told my wife last night that I wasn't going to take a shower. I anticipated a real mess in the near future. The tank is filled with 20 gallons of high test and not enough containers to drain. I guess I'll put on some disposable clothes and goggles, and have the drain pan and LOTS of rags handy. One hand quickly yanks the old hose off, and the thumb of the other hand attempts to stop the flow until the new hose is seated. All while laying on my back with the hose pretty much directly above.