I bought a 20 dollar 3L hydration pack from ebay for Hard Summer 2014. Ive been using it ever since only needing to replace the tip a couple of times cause I chew on it like crazy 😂

I guess sometimes you get lucky. And since its 3 L I usually only fill it up once.

I found it on Amazon Bormart 3L 3 Liter 100 ounce Hydration Pack Bladder Water Bag Pouch Hiking Climbing Hunting Running Survival Outdoor Backpack (Army green) https://www.amazon.com/dp/B0727XRM3W/ref=cm_sw_r_cp_apa_i_bxjcBbV7NCVAF