Help syphoning liquid from a 10L water bag (DIY BIB)

[TKB21]

Hey all! After some independent research in trying to create my own custom BIBs I came across these 10L water bags and was wondering what would be the best approach as far as syphoning the liquid from them. I have the means of "suctioning" my syrups with a CO2 propelled syrup pumps but where I'm running into a blocker is connecting the pumps to the water bags outside of dipping some 1/4" vinyl tubing directly into the bags. Why I don't want to go this route is because I'll be outside, do not want to attract insects from crawling inside (it's happened), and preventing spills with some sort of seal. Any idea on how I would accomplish this? The diameter of the liquid bag moths are 1.65".