The SOURCE Tactical WLPS 3L bladder is my (Brian’s) absolute favorite bladder for the GR1 and Rucker. It’s wide which allows it to take up more of the width and height than the popular WXP bladder. Because of this it’s not as deep which makes packing for a GORUCK event that much easier.
When it comes to GORUCK events I’ve had weird luck with bladders. The first I bought was a CamelBak and it broke on me during my first event. The second I bought was an MSR Dromedary 4L which has a tendency to leak everywhere. The third bladder I bought was from Source and (back in 2012) and it’s still working to this day. I’ve replaced the hose on it once but that was it.
Between 2012 and present I’ve bought a number of Source bladders to keep around for guests but I’ve never had to replace one. I consider myself pretty lucky in this regard but, because of that, Source is the bladder I recommend for GORUCK events.
If this is your first bladder purchase and your backpack has webbing then don’t forget to pick up an ITW GrimLoc. You won’t regret using one keep your hydration hose in check.