[ira-k]

7/16" ID will be really loose on 3/8" barbs, no way would I try that, I doubt you would ever get that clamped well enough that it wont leak.

If you have to neck down to 3/8" for that one block I'd just use 1/2x3/4" tubing on the whole thing. Then just get a foot or so of 3/8x1/2" tubing. Cut a little piece of it long enough to go over the 3/8" barb, then just slide you 1/2" ID tubing on over that and clamp it, that gives you a real good leak proof union without having to use reducers.

Or just use some reducers...1/2" barb to 3/8" barb Hose Adapter

 

[ira-k]

Just use 1/2x3/4" tubing on the rig and 3/8x1/2" on the 3/8" will fit it just right, I've done it many times. No guess work involved..

 

[ira-k]

Yeah $3 or $4 for some tubing is really expensive.

One thing about it, it would still be a lot cheaper then using 7/16" on 3/8" barbs and leaking all over his board.

 

[ira-k]

Quote:

Originally Posted by unleaded91 I just didnt want to wait anymore

..I know that feeling.

.But don't kill your rig over it. 7/16" on 3/8" barbs is loose as a goose Man. I know I've tried it before and I never could get it to quit dripping. I even tried slitting it so I could overlap It a little to get it tighter, that didn't work either.

Now that 3/8x1/2" tubing on a 3/8" barb then 1/2x3/4" over that gives a real good seal. I don't remember who I learned that from, I think it was either fstfrddy or DryadSoul.