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Safe to flush system with distilled water?

post #1 of 15
Thread Starter 
Well, I'm coming up to the second ever coolant change of my system.

Previously I've just drained old coolant and put back in new coolant.

But I was curious, since it's so cheap, could I drain the old coolant, then fill and flush with distilled water, then refill with coolant?

Just to flush out any contaminants a little better or is it not worth it?
Edited by porschedrifter - 1/4/11 at 10:57am
    
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post #2 of 15
Yeah, distilled water is absolutely fine. I've seen a ton of threads of people filling the system with distilled water for 10 minutes and then draining it.
post #3 of 15
Why not just use distilled water w/ biocide instead? Then you wouldn't have to flush.

If you like the colors, you could always get UV tubing instead, and it provides the same effect without all the mess.
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post #4 of 15
Distilled water is essentially inert. There is nothing that could possibly go wrong with using it to flush your system. Many people use distilled water plus a small amount of biocide as the coolant.

Even if you have mismatched metals like aluminum and copper in your loop there will be no danger of corrosion in the time it takes to rinse the loop. It would probably take days for anything to happen.
Edited by Epitope - 1/4/11 at 11:09am
    
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post #5 of 15
Quote:
Originally Posted by porschedrifter View Post
Well, I'm coming up to the second ever coolant change of my system.

Previously I've just drained old coolant and put back in new coolant.

But I was curious, since it's so cheap, could I drain the old coolant, then fill and flush with distilled water, then refill with coolant?

Just to flush out any contaminants a little better or is it not worth it?
So why are you replacing the distilled with coolant? That's the second mistake you will make, the first being using some type of pre-mixed coolant in the first place.

Quote:
Originally Posted by tconroy135 View Post
Yeah just don't leave the distilled in their 24/7 because it will eat away at your blocks and then if you leak the liquid will be conductive.
Where do you get your drugs from? PM me with their name/number, I need the good stuff.

Even "non-conductive" coolant is conductive, and right out of the bottle at that. Anything, no matter what it is, will become conductive with exposure to air. Some things like mineral oil are thick as well as non-conductive and this can help the material to stay non-conductive.

I recall a video test done on youtube where the tester poured F1 pre-mix and had the board sort out immediately with a very small amount of coolant poured. He tried distilled and nothing happened at first so he really poured it on the mobo/gpu/cpu setup he had and it still took a few seconds for it to short out.

It's not F1 but it's an equivalent.

He has to flood the crap outta the second board to get it to stop with distilled.
Edited by Shrimpykins - 1/4/11 at 11:16am
 
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post #6 of 15
@ OP: Just do myself and Behemoth said... Use distilled water if that's all that is available, but drain it afterward.
post #7 of 15
Thread Starter 
I don't use UV dye or any colors, always stuck with clear.

I currently use Innovatek Protect

and before that when I first built the system I used
Fluid XP+ Ultra LT with z7 Clear
    
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post #8 of 15
Quote:
Originally Posted by porschedrifter View Post
I don't use UV dye or any colors, always stuck with clear.

I currently use Innovatek Protect

and before that when I first built the system I used
Fluid XP+ Ultra LT with z7 Clear
Distilled > ALL. <-- period
 
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post #9 of 15
Stick with distilled, don't waste money on pre-mixed crap.

There have been tests that show distilled water yielding better temps than a pre-mix. I can dig them up later if anyone wants.
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post #10 of 15
Thread Starter 
Cool, didn't know about how efficient distilled was. I got one bottle of my Innovatek Protect to use for this year, next year I'll switch to distilled for good then.
    
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