How do you properly install macro line lol?

[ReconSWS]

I seem to be having some trouble as of late. Usually macro-line fittings are fine, but I can't seem to get them not to leak recently. What's the solution to leaks out of the actual line area and not the theads? I tried cutting the macro line perfectly flat, but maybe it'd not flat enough.. teflon tape the ends?

(it's leaking from the actual macro-line input q/d area).

There seems to be a technique to it.

[Trbo323]

Replace the o ring in them.

Pull the collars out, o ring is hiding inside

Size 010

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[Marbo40k]

Start with a nice square cut. I usually lightly break the edge of the cut ends by scraping with a razor blade sometimes finish by flashing it with a lighter.

And yeah as Trbo said, make sure your fittings have good o rings.

Even with all that, sometimes you will have to “massage” the lines into place while pressurized to get a good seal.

[Jordan]

Are SS braid lines a no-go? I've given up on macro and gone back to SS when possible to avoid the headaches, but I know not everyone is keen on that idea.

[SignOfZeta]

I never ever use Macro line. It looks like a dare or something. Pointlessly risky and “high tech” for no reason. Braided with real fittings every time or the rigid line that CCI used.

[Trbo323]

Are SS braid lines a no-go? I've given up on macro and gone back to SS when possible to avoid the headaches, but I know not everyone is keen on that idea.

Use whatever hose you like. Nothing wrong with braided or ss lines.

I have noticed that sometimes a new piece of macro will leak more than one that's had some break in time.

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[JonM]

I use a PVC cutter to trim my macroline. It provides a perfectly clean cut every time. So long as the o-ring is intact and the macroline is cut to the proper length, it should seal fine.

[Trbo323]

Cigar cutter.

Box knife in a pinch, never wire cutters

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[Cunha]

Oil on it

jam it all the way in while holding the collar away from the fitting so there’s a gap

then pull on it some and work it into a strong position

with a good clean cut it should be okay

[Trbo323]

Oil on it

jam it all the way in while holding the collar away from the fitting so there’s a gap

then pull on it some and work it into a strong position

Hey hey hey, those instructions from the condom wrapper are trade marked

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[Meleager7]

Amazing!!!

[Chuck E Ducky]

Straight cut pencil sharpen the end so it rounded and don’t cut the sealing oring. You basically just take the sharp edge off so it’s a bit beveled and slides past the sealing oring without damaging it. If it leaks hit the fitting with a lighter for a few seconds should seat the barbs and help the oring seal.

[mtaylor]

I always used a pex cutter. The pencil sharpener on the end seems like a good idea, too.

[Trueblue]

Pull out the collar with pliers. Extract the o-ring, lightly grease it and put back in, then push back collar on.

Learned this one from a friend and former teammate, who owns a water purification business that makes systems for Dow here. Same basic type of fittings and has fixed my leaks, everytime.

[caylegeorge]

Yep, imo the key is a fresh o-ring lightly greased, and then smoothing the fresh cut edge on the macroline over so it doesn't cut up the o-ring on the way in.

[ReconSWS]

Thanks for all the replies, I'll refer and surely be able to fix all my macro leaks. Cheers!

[Chuck E Ducky]

Capital Dave showed me the lighter trick. Works 90% of the time leave it aired up and everything just heat the fitting that’s leaking slightly.

[ReconSWS]

Ah yeah saw that on a vid just now too!

[Jonnydread]

I like to take high grit sandpaper on new cuts, but replacing/oiling the collar o-ring makes a huge difference.