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PrimoFlex Advanced LRT - Barely fits BItspower compressions

post #1 of 14
Thread Starter 
I'm piecing together my first water cooling build and have finally begun running the tubing. I'm using 1/2" ID 3/4" OD PrimoFlex Advanced LRT and I'm finding the stuff to be very difficult to work with. It takes an extreme amount of force to get on the compression fittings. The compression ring on the fittings can barely screw on once the tubing is on there. Worst of all is the amount of stress the tubing puts on the components. I have an appropriately sized tube running from my video card to the pump base and it's pushing the pump base out of position on the anti-vibrations stands.

Can anyone suggest an alternative tubing they've had success with?
post #2 of 14
Quote:
Originally Posted by theirlaw View Post

I'm piecing together my first water cooling build and have finally begun running the tubing. I'm using 1/2" ID 3/4" OD PrimoFlex Advanced LRT and I'm finding the stuff to be very difficult to work with. It takes an extreme amount of force to get on the compression fittings. The compression ring on the fittings can barely screw on once the tubing is on there. Worst of all is the amount of stress the tubing puts on the components. I have an appropriately sized tube running from my video card to the pump base and it's pushing the pump base out of position on the anti-vibrations stands.

Can anyone suggest an alternative tubing they've had success with?

That specific tubing from primo chill is really the best tube out there maybe outclassed by tygon but let's not get into that. There's a reason why they're like that. It's so they don't kink and you don't have to worry about being a bit tough. I have bitspower compression fittings and the same tubing. You can use hot water and do the ends into to make it a not more workable, if that helps
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post #3 of 14
Quote:
Originally Posted by knersie69 View Post

That specific tubing from primo chill is really the best tube out there maybe outclassed by tygon but let's not get into that. There's a reason why they're like that. It's so they don't kink and you don't have to worry about being a bit tough. I have bitspower compression fittings and the same tubing. You can use hot water and do the ends into to make it a not more workable, if that helps

+1 on the hot water.

Run it under that for a minute and they slide right on super easily.
post #4 of 14
Thread Starter 
I'll give hot water a try for getting the tube over the fittings.

What about straightening out a piece of hose? After searching, it seems as though using boiling or near-boiling water is also the best way to remove the natural bend of the tube.
post #5 of 14
Quote:
Originally Posted by theirlaw View Post

I'll give hot water a try for getting the tube over the fittings.

What about straightening out a piece of hose? After searching, it seems as though using boiling or near-boiling water is also the best way to remove the natural bend of the tube.

You don't have to worry about straightening the tubes. They will straighten themselves when you connect them.
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post #6 of 14
Thread Starter 
Quote:
Originally Posted by knersie69 View Post

You don't have to worry about straightening the tubes. They will straighten themselves when you connect them.

The tube I'm having an issue with is already pushing one of my rotary fittings out of the desired position. Since it's moving the fitting, it won't actually straighten the way I want it to.
post #7 of 14
I have the same issues right now, any update on this?
post #8 of 14
Any decently thick tubing you use can put pressure on fittings. You have to use the natural bend in the tubing to your advantage to avoid tension. In other words, undo the compression fitting ring, spin the tubing around on the barb so that it naturally bends in the exact direction you want it to go, sometimes you will have to play with the direction to see what works, but you can get it fit so there is no tension on rotaries.

Also I use 3/8 5/8 tubing, as for me it is easier to work with, fits bitspower fittings well, and I prefer the aesthetics, as for flow differences it is less than .1 gpm, ie nearly immeasurable.
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post #9 of 14
Thanks. I tested a small section of the tubing by boiling it (about 60 seconds), straightening it, flash cooling it, and letting it sit for a day. The tube is now naturally straight and doesn't feel any different from the original, but I worry that their might be some chemical or structural break down by boiling it. Do you have any experience with this? Is it not recommended? I have planned my loop to be all straight lines this time around. As the OP, I have 1/2 ID 3/4 OD Advanced LRT.
post #10 of 14
No chemical alterations are going to be made to the tubes. You should be good to go. thumb.gif
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