Tank flushing

[C5Engineer 1170]

I need to flush my tanks this week. There seems to be about a billion opinions on how to do it. Seems like you can get more crap out if you take the fittings out but then I don't see how you could keep fuel from running all over the bottom of your wing. Thoughts

[akflyer 1427]

I just put 5 galloins in mine, shook the shit outa the plane by the wing strut attach point and the wing, let it set for a few, then shook the shit outa it again.  Opened the drain valve on the tank bottom I had installed just for this and let it go into a gas can through a Mr funnel so I could see what came out.  I did not get any nastys out the first time, but after 65 hrs, I did have some shit in the fuel filter that started to plug it off (could see the fuel flow rate going down a few point from normal on the take off pull power settings).  Sure do love the flow meter!