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Small leak that i cant find for the life of me - Page 2

post #11 of 17
I've had to top mine up a couple of times since I got it up and running a couple of weeks ago.
If I fire both of my MCP35x pumps up to 100%, I can still occasionally hear some stubborn little air bubbles somewhere in the loop.
Well, at least I could until a couple of days ago when I let them run full out for 6 hours while doing yard work.
I came back in the house and found the water level down a little. No random gurgles since.

Quote:
Originally Posted by Blindsay View Post
shouldnt it not evaporate in a closed loop though?
Your typical PC water cooling system is not what would be called hermetically sealed.

You would need tubing made with, or lined with something like neoprene, vulcanized rubber, Teflon, or other non permeable material, or metal tubing.
The PVC and vinyl tubing, including Tygon, used in water cooling setups will actually absorb very very small amounts of water from inside the tubing. The water then evaporates from the outer surface of the tubing.
Water vapor is also able to directly permeate through the walls of the tubing.

Larger diameter tubing will lose water from the system faster than smaller tubing due to it increased inner and outer surface area.

I've actually been seriously thinking of piping my system with copper pipe, but it wouldn't be worth the effort.
Maybe some time in the future when/if I build a system where I want to show off the internals.

I work with hermetically sealed systems every day, but typically I'm trying to keep water OUT of them.
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post #12 of 17
When you set up the loop how hard did you try to get air out?

I tilted, banged and pounded on my case for a good 45 minutes and air was still finding its way out later in that week.

It should stop going down soon.

- fr0st.

post #13 of 17
^ you banged your case... must be a real looker.
post #14 of 17
Thread Starter 
Quote:
Originally Posted by fr0st. View Post
When you set up the loop how hard did you try to get air out?

I tilted, banged and pounded on my case for a good 45 minutes and air was still finding its way out later in that week.

It should stop going down soon.

- fr0st.

i didnt do any of that, just threw it all together and went on my way
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post #15 of 17
Quote:
Originally Posted by diane View Post
^ you banged your case... must be a real looker.
Oh, shush, you. I banged ON my case. (No, I didn't bang someone on my case before you exploit that too).

Quote:
Originally Posted by Blindsay View Post
i didnt do any of that, just threw it all together and went on my way
Yeah, it help dislodges air, I would pick up the front of the case and bang it back down onto the table and then watch bubbles circle around to the res, refil and repeat for a long time.

I'd give it a couple of whacks/tap on the pump a few times to try and dislodge any air. It will also lower temps too

- fr0st.

post #16 of 17
Tap on the radiators lightly.
Gently shake the case.

You'd be amazed at how easily some bubbles release.
post #17 of 17
Quote:
Originally Posted by fr0st. View Post
Oh, shush, you. I banged ON my case. (No, I didn't bang someone on my case before you exploit that too).
How bout something?
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