I have a very heavy backpack for multiday hikes, and trying to get water out of the hydration bladder to fill my jetboil for cooking is a huge pain in the ass because for siphoning, the backpack has to be higher than the end of the tube. So I’m looking for an inline hand squeeze pump that I can insert into my tube. HydraPak used to sell one but it’s no longer listed on their site, and I only found it still for sale by a French store. I’m in Canada so looking for something I can get shipped from within North America. Looking around Amazon etc. I see squeezable siphon pumps for fuel and aquariums, but don’t know if those are food grade (worried about plasticizers like BPA) and whether the connectors will fit the diameter of my tubing. Any other products specifically for hydration bladders or at least potable water?
Flip the script.
Multiple companies market pressurized hydration bladders. There's an inner partition in the bladder, they come with a small air pump that pressurizes that side of the bladder. Not only does it mean water comes out when you simply bite the valve, but it means you can squeeze the valve and direct water at something else, say a dog's mouth or a pot.
There's also the advantage that since the system is pressurized there's normally no backflow when you stop sucking and the system stays cleaner.