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post #1 of 15 (permalink) Old 08-27-2019, 02:17 PM - Thread Starter
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Soft Tubing Lifespan

I've been trying to locate a small leak in my loop (with no luck) and noticed when I was checking a few fittings that the tubing is now pretty loose on the compression fitting (with the nut off). How long does soft tubing normally last? I assume it has softened over time and that's why it is a little loose, and probably contributing to evaporation if not outright leaks, but I have no idea if that is normal. I replaced one of the lines and it was hard to put the new one over the fitting, while the old one was easy to remove (and leaked a bit when it was moved without the compression nut on it). Thinking I'll just end up replacing all the lines since I just can't seem to find the leak, but thought it worth asking before I go that route.

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post #2 of 15 (permalink) Old 08-27-2019, 07:01 PM
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Can't say I've ever had age cause my tubing to loosen, quite the contrary actually. Heat on the other hand loosens them right up.

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post #3 of 15 (permalink) Old 08-27-2019, 07:02 PM
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Quote: Originally Posted by Forceman View Post
I've been trying to locate a small leak in my loop (with no luck) and noticed when I was checking a few fittings that the tubing is now pretty loose on the compression fitting (with the nut off). How long does soft tubing normally last? I assume it has softened over time and that's why it is a little loose, and probably contributing to evaporation if not outright leaks, but I have no idea if that is normal. I replaced one of the lines and it was hard to put the new one over the fitting, while the old one was easy to remove (and leaked a bit when it was moved without the compression nut on it). Thinking I'll just end up replacing all the lines since I just can't seem to find the leak, but thought it worth asking before I go that route.
it takes quite some time, but I've noticed that evap goes up with age. Your small leak may actually be evap.

I've found loose compression fittings months & months later, but was never sure if it was from the tube wiggling its way out over time, or me overlooking it.

I actually have the exact same problem right now. My system is evaporating more water than ever, to the point where I thought it was a leak but its just NOT happening anywhere in the physical plane.

I'm not sure, but I think different colors of ADV LRT evap faster

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post #4 of 15 (permalink) Old 08-28-2019, 02:47 PM - Thread Starter
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Yeah, I did fine one bad fitting (a rotating 90 degree) and replaced it, but it hasn't really changed the drop rate in the reservoir. I'm debating just replacing all the tubing anyway, I got a good deal on some at Microcenter so it's really just the hassle factor.

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post #5 of 15 (permalink) Old 09-05-2019, 10:23 AM
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Keep in mind over time the tubing is compressed which contributes to that sidewall maybe becoming thinner over time (at least where it connects to the fitting). Hence why I've always gone back in the case periodically (maybe every 6 or 12 months) and giving the compression rings a turn to re-tighten.

I've also noticed that for every 12 months, my reservoir will need to be refilled. It's a small reservoir, but after 12 months, it will be down to about 1/4 full. Not sure if that's related to loose tubing or not. Not sure where the evaporation takes place. There are no leaks.

As for the tubing lifespan itself, depends on how bad it leaches plasticizer. With regards to the looseness, if it reaches a point where the compression is all the way tightened but the tubing is still loose, then yeah, I'd replace it.

I've ran my current tubing for nearly 5 years now and it is still in great shape. I've had other batches though that leeched horribly and needed replacing after a couple years.

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post #6 of 15 (permalink) Old 09-05-2019, 11:39 AM
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I ended up actually finding a micro leak! Turns out the threads were damaged on the last 1080ti I picked up. (before you ask... I always replace o-rings before using a fitting a second time, since I run things for years at a time)

It was too small to actually leak for the longest time but I'd hear it sucking air in upon boot. (at least, this is now what I'm confident the sound was)

fast forward, I wake up to THE SOUND...

i'm now down to one 1080ti, but I was going to pull one anyways during the install of a new board.

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Last edited by skupples; 09-05-2019 at 11:46 AM.
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post #7 of 15 (permalink) Old 09-05-2019, 02:05 PM
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Yikes, glad you were able to find it.

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post #8 of 15 (permalink) Old 09-05-2019, 03:19 PM
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Hi,
Yeah closed loop
Pump on and off creates vacuum and push pressure which the later will leak turning on and off computer
I added pressure release to get rid of both issues in the reservoir where most air will accumulate and where my leak was coming from pump base reservoir combo connection.

To see how much shut down and see where the water level is
Startup and see how much the water level drops.
Usually about 1/4" doesn't seem like much but that is enough to find weak o-rings and or connections in general.

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post #9 of 15 (permalink) Old 09-05-2019, 03:29 PM
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it kept leaking even with the reservoir open. An incredibly slow, small pool of water, right @ the EK-FC Terminal, both top ports. Turns out the threads were heavily over torqued... Looks like someone could have even hit the lip with sand paper. I should have noticed this damage immediately upon receiving the card, but I made the huge mistake of upgrading during a busy time in life.

In theory, this means there was (at the least) water pooling between the block & card, near a memory chip. Further proof of this were the weird random vertical artifacts in 3d, and random partial frames in 2d, and the eventual 2d crashing upon even setting an OC to the card.

Good news is the card is working fine after a couple days in the window. So it'll just be relegated to backup duty, or maybe I'll gift it to someone i know... IDK.

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post #10 of 15 (permalink) Old 09-05-2019, 06:10 PM
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Quote: Originally Posted by skupples View Post
it kept leaking even with the reservoir open. An incredibly slow, small pool of water, right @ the EK-FC Terminal, both top ports. Turns out the threads were heavily over torqued... Looks like someone could have even hit the lip with sand paper. I should have noticed this damage immediately upon receiving the card, but I made the huge mistake of upgrading during a busy time in life.

In theory, this means there was (at the least) water pooling between the block & card, near a memory chip. Further proof of this were the weird random vertical artifacts in 3d, and random partial frames in 2d, and the eventual 2d crashing upon even setting an OC to the card.

Good news is the card is working fine after a couple days in the window. So it'll just be relegated to backup duty, or maybe I'll gift it to someone i know... IDK.
You should be able to replace the G1/4 terminal or do you mean that threads that piece is mounted into the actual block itself? https://www.ekwb.com/shop/ek-fc-terminal-acetal

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