geordi wrote:
"turning it on and letting it pump itself out" would only work if you have a lift pump.
Chances are, when you NEED it, will be just BEFORE you have installed said pump.

If you don't have a lift pump you can disconnect the fuel line at the filter head and siphon thru the tank pickup. I've used my mighty vac to get the siphon started this way twice (so far). In my opinion this is way less work than dropping the tank and probably quicker if you count transporting and getting a non-running vehicle up on a lift to drop the tank. I think it takes about 1.5 hours to drain completely. I did change the filter the time my wife started and drove off. She got about a mile before it died. Even though it was started I was glad the percentage was high enough that it wouldn't run.