I found a verysmall leak, half the battle I suppose, it involves an 8 port manifold, if I cut the vinyl hoses from manifold to replace then all my vinyl tubing will be short when installing new manifold, how do I get around this? thanks

Elevate the manifold, or coupling the hose to make it longer.

Well I took a good look at the manifold and it appears to be leaking thru a pinhole in the body itself, looks like a manufacturer defect but I'm outta warranty now.
I don't think I can elevate the manifold because there are hoses coming from several different directions, that many couplings (x8) seems like a sure bet for future leaks plus I know using radiator hose clamps don't provide the neccessary 360deg of clamping force, like the original clamps. If it was under warranty I would not stand for that type of repair, what other options are there? all help appreciated.