Vacuum fill water cooling loop?

Soldato
Joined
30 Jul 2005
Posts
19,821
Location
Midlands

Seen this vid by jay and something doesnt sit right with me. Pc cooling rads aren't built that tough enough to handle pressure since they usually see less than 90c temps and in the vid he could hear the rad imploding from the vacuum. Anyone else use this method? Iv only used vacuum methods on the car since car rad is built to handle pressure and therefore lack of it.
 
Rads can handle a fair bit of pressure. ISTR Jason doing a vid where he intentionally pressurised a cooling loop to see how much it'd take before it blew apart... and it took more than you'd think.
 
if coolant is under a vacuum then it will lower the boiling point. may even start boiling at 70c depending how much vacuum there is.
They are using a vacuum to pull liquid into the loop to fill it entirely and avoid bleeding it. Not leaving it under vacuum.
 
Last edited:
And? It will still be well above any reasonable loop temperature. Not sure what you are trying to imply here :)
may not affect the loop but the block will have issues. hot spot areas can boil.
still cant believe how unreliable water cooling is for computers. even cars got it right decades ago.
 
The leakshield thing does seem to maintain/vary a low pressure vacuum, no way near having to worry about reducing the boiling temp of the coolant though :P. Cool idea!
 
Yeah leakshield doesn't create
A very strong vacuum
Just enough to prevent leaks

As with a lot of youtubers
Think they just go to extremes
To hype things up
Used miles more vacuum than needed

With leakshield the vacuum to fill the loop part
Is an additional add on
At least if my memory is working for a change

You can buy leakshield as a standalone product
Without their pump/reservoir
But there's very specific things you have to follow
Regarding placement in the loop
Can't just shove it anywhere
Forgot all the technical information as read it
Ages ago when leakshield first came out
If it wasn't for all the requirements you needed to follow
Would have bought the standalone one
The vacuum fill parts pretty useful
As well as leak detection just in case
 
Although I am still subbed to Jayz2Cents I can't remember the last time I actually watched one of his videos, mainly I am put off by the clickbait thumbnails and video titles. The clickbaitedness of his channel has gotten quite ridiculous in the last few years, and I find I rely much more on Gamers Nexus for actual proper tech journalism these days. I will watch the video later on though to see if it meets expectations.
 
Jayz does whacky crap all the time purely for entertainment purposes.

Leakshield on the otherhand is used incase there is a leak as the name suggests but people have used it to fill loops as well as it creates a suction which is great for filling loops though personally the traditional method of just fill and repeat is fine.
 
Now I've watched what he was doing the main issue with the method is going to be the stress put on the welds of the channels in the radiator. Depending on how much vacuum you generate will determine how much these flexible brass channels will suck themselves in, whist the fixed ends where they are welded cannot deform, so potentially plastically deforming the brass of the channels near the ends. That's what the crackles coming from the rad was obviously. So not what I would be doing.

Edit: Actually the crackles from the rad were more likely the spot welds between the fins and the channels breaking due to the channels inward deformation, so even more daft than first thought, as this would happen even at low levels of vacuum, and it kind of needs all those spot welds intact as how else are the channels going to conduct heat to the fins?
 
Last edited:
Although I am still subbed to Jayz2Cents I can't remember the last time I actually watched one of his videos, mainly I am put off by the clickbait thumbnails and video titles. The clickbaitedness of his channel has gotten quite ridiculous in the last few years, and I find I rely much more on Gamers Nexus for actual proper tech journalism these days. I will watch the video later on though to see if it meets expectations.
Same here. Was funny for a while but all the “Corsair is the tears of an unicorn and can cure cancer” approach is off putting. GN for news, KitGuru for reviews too and few others ever now and then. Hardware Canucks, apart from the guy who tests coolers, is another joke. Everything is labelled as the “last cool can of coke in the desert”.
I understand there’s a push to influence people (they’re influencers, after all) to buy stuff, but they can do it while being transparent and professional. Can’t see them talking about Liam Li poor QC (shipping old panels, which wasn’t supposed to reach the market a year after the issue was “solved” before shipment, of faulty I/O, twisted frames, etc) or EKWB shipping blocks with loose screws, wrong sized screws).
Every manufacturer will eventually face some issues, but the why the YouTubers talk about few manufactures, makes one believe they’re buying something premium, when all they’re getting is some nasty brittle plastic and RGB.
 
may not affect the loop but the block will have issues. hot spot areas can boil.
still cant believe how unreliable water cooling is for computers. even cars got it right decades ago.
I wouldn't say it's unreliable. More often than not if there's leaks it's user error. Sure like with anything you can get faulty parts but if you check your equipment and test for leaks then it's pretty reliable imo
 
if coolant is under a vacuum then it will lower the boiling point. may even start boiling at 70c depending how much vacuum there is.

60c coolant with no vacuum will fry your pump and melt your tubes, I wouldn't worry about lowered boiling temp
 
Last edited:
Back
Top Bottom