I don't understand the big obsession with hose clamps. Surely they make you think everything is leak free, but from my experiences, a hose clamp has made things worse. If a hose doesn't fit on a barb snug enough to where it's hard to come off, a hose clamp sometimes just make it's bubble on one end. If that's not the case, you usually don't need one. Personally, I think they're somewhat ugly, so I've gone with my good ol friend PVC cement. It bonds with metal and plastic extroadinarily well, and it's waterproof. If you get on in there good, you have a perfect seal too. If operating on it is a problem, all you need to do to break the bond is a nice few twists, otherwise you can yank it all you want. Like to know any other experiences some of you experts out there have though. Also a good tip, use 3/8 ID hosing on 1/2" setup. It can be tough to get the hoses on, but chew on the ends for a good 30 seconds and get it soft.
~ben
~ben