Fuel tank drain plug size

[oldsking]

I did a search was not able to get a clear answer on the size of the drain but I plan on using it as my fuel feed for my aeromotive fuel pump. Currently the car is running and I prefer not to dismantle it now to check the size to have the car sitting for a while haha.

I found one source that said 20x1.5mm , can anybody confirm and let me know for sure the size? Cant find a person to sump my tank so I plan on doing the next best thing and use this port

 

[fstlane88]

I would also like to know.

 

[Another MkIII]

Fuel lines hanging down there is a bad idea. Run over some debris, and you now potentially have fuel pouring out of your tank. And just a little too close to the exhaust for my comfort...
-AM3