Use in tank electric fuel pump to empty tank?

Wanting to empty the fuel tank, it is about 1/2 full and I have storage for the gas until I use it. What if I break one of the existing lines open, use a fitting to attach a length of braided flex hose that I have around and use the in tank fuel pump to empty the tank. I have a manual over ride on the fuel pump so I can run the pump without the motor being on. Obviously, no smoking, asking if this is a good idea.