CamelBak Big Bite Valve Cover

I recently retro-fitted a tiny toddler backpack into a camelbak pack for my 3 year old son, who is so excited to carry his own water on our short hikes. His bite valve was getting pretty gross from dragging in the dirt as he stopped to investigate EVERYTHING along our path. I bought this valve cover in hopes it might help. It has been amazing! It works great at keeping the dirt off the valve. My son can easily open and close it on his own, and he loves the added gadget to his pack.

It should be included with every camelbak, you really need to drink without mud.... Very hard to install, took me a couple of minutes. Finally I put it in water and then it succeeded.