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Leak testing overnight

post #1 of 9
Thread Starter 
Ok this may seem like an obvious question to some, but I'm in the process of leak testing my first loop - it's been going for around 2-3 hours now, will I be ok to leave it leak testing overnight so long as i have paper towels around each and every barb?

Is it too much of a risk to leave on?
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Molly Coddled v2
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post #2 of 9
check it now, it there is nothing on it, go for it.
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post #3 of 9
I gave up on overnight leak testing, as I eventually just got impatient. I'll leak test the system until all the air is bled out, so it's usually about 3-4 hours tops before I put everything back together.

IMHO, if it doesn't start spraying water all over the place within the first hour, then you're probably not going to have a problem after that. I don't know if I'm just over confident after water cooling for 5 years now, but it seems like if and when I do have a leak, it appears soon after I begin filling the system... usually it's an over tightened fitting where the o-ring was distorted to where it wasn't making a seal, or a hose clamp that wasn't tightened enough.


But because you are planning on leak testing over night, leave the paper towels around the barbs/under your blocks, and flip the pump on/off one or twice to make sure it still doesn't leak after the pressure is equalized in the reservoir. If it doesn't leak, either give up and put everything together, or leave it sit over night and come back in the morning...

If you are running it over night, loosen the fill cap on the reservoir just enough so that air can get out so that it bleeds the system, then you can top it off in the morning and you're good to go
    
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post #4 of 9
I connect and if no water within an hour, I proceed to shake my entire case for air bubbles, after bleeding(no air), my rig is safe to use.

As above sad, paper towel under every barb if your going to do it over night.
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post #5 of 9
yup... I'm a fan of vigorously shaking my case during leak testing/bleeding as well.

1. it gets any air bubbles out of your system

and 2. if none of your hoses come flying off or leaks start during shaking, then you're probably good to go
    
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post #6 of 9
triple and quadruple check, make sure air has been bleed as best as possible, run for a few hours, no leaks or wet/damped paper towels, should be ok. I usually tap on the tubes to bleed the air out, works great. most of my blocks are acrylic tops, so i can see if any bubbles are there.
post #7 of 9
Thread Starter 
Cheers guys, It's been good for a good 3 hours now without any signs or a drip or any moisture what so ever. I'll risk it and leave it going over night - I'll just make sure I go overkill with the paper towels just incase something does go wrong.
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post #8 of 9
How do you people have no air bubbles in "2-3" hours. I refill my loop like 4 times a year, and it always takes a few days to be completely empty of air.
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post #9 of 9
Thread Starter 
Quote:
Originally Posted by SeigiSama View Post
How do you people have no air bubbles in "2-3" hours. I refill my loop like 4 times a year, and it always takes a few days to be completely empty of air.
I found tapping the tubes lightly cleared most, and just tipped the case about to release the big bubbles trapped in the rad.
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Molly Coddled v2
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