Fuel sending unit not flowing.

Don't have to take tank out , fuel pumps won't be able to suck the fuel . What I did is take the line off at the pump and suck some fuel up to the pump , then attach quickly so there is fuel in the line then the pump will be able to pump. I had a little bit of gas in my mouth but not bad . lol Worked for me .
I tried that nothing is coming thru the sending unit its plugged or something lol