Fuel lines and filter replacement

Hi Ifixit community, I have a partially disassembled (no fuel lines or fuel filter) Craftsman 316.791880 string trimmer. I am looking to install new lines and a new filter but not sure of the routing of the lines and why there are 2 holes in the bottom of the fuel tank. Is anyone familiar with this model and the fuel system?

Thank you in advance, any help is much appreciated!