I don't care for bladders cause they make the water taste like shiite.
If so, you're not using the right bladder. The new ones are made of different plastics and have taken care of that problem, like the one below. EdT suggested it to me a few years ago, and it's great:
https://www.platy.com/catalog/product/view/id/16837/s/hoser/category/45As far as unexpectedly running out of water, here's how I see it. I'd rather drain a 2-liter or 2 1/2 liter reservoir unexpectedly than track how much I'm drinking out of a 1-liter nalgene. I used to take a 1-liter bottle on the morning hunt, and found that by lunch time, I'd finish it. When I switched to a hydration bladder with more capacity, the convenience of having the hose clamped right there on the shoulder strap meant I drank a lot more often, didn't even have to stop walking to get a drink. So I found I'd drink about two liters by lunchtime, same hunt, same conditions. Food for thought.
