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How Often To Drain & Refill Loop!?

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post #11 of 36 (permalink) Old 02-04-2020, 09:57 PM
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yeah, just depends on what you have.

I for one have been running about 2 years with no cleaning out and i'm just now seeing juuuust a tiny bit of microbes building up.

using only distilled water and no biocides and just 2 kill coil inserts in the rad.

i'll post pictures here shortly as i had to order some pipe cleaners to run through.

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post #12 of 36 (permalink) Old 02-04-2020, 10:16 PM
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Quote: Originally Posted by LesPaulLover View Post
-I generally always monitor my temps when gaming
-Clear tubes but it's a completely closed "silent design" case (no windows on the side panels)
-Just distilled water + "Coolant concentrate: EK-CryoFuel Clear Concentrate (100mL; for 1L of coolant)"



OK I should clarify: it's the "Coolant concentrate: EK-CryoFuel Clear Concentrate (100mL; for 1L of coolant)"
so it doesn't have anything in it. It just looks like slightly-more-opaque water - doesn't seem to have any particulate or anything in it. In fact it had to be mixed with 1000ml of water (which was too much for my loop) and the rest of the mix has been sitting in my storage closet for 2 months now. There's no sediment or anything settled in the bottle.
Unfortunately there is no "magic" calculation on how long between changes, it'll be a bit of trial and error. Its good you're monitoring temps, that will help you detect a problem. Keeping water temps low will increase your anti-corrosive additive life but ultimately it will stop working and will need new fluid. I think 1 year should be max if you want to be safe. 6 months if you want to be REALLY safe. I think the longest I went was about 1.5 years and the CPU block was pretty gross but not terrible.

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post #13 of 36 (permalink) Old 02-05-2020, 06:12 AM
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I change on January after...about 10 months with distillate+car liquid.
Problem: The thermaltake tube start plasticising....very bad.
Apart that no problems.

Change tube to new from Tygan, and did try X1 Clear, already pré-mixed.
Previous, lot of cleaning with liters flushing of distillate water.

So far so good. Everyday i watch to liquid and tubes to see if there are any changes.
By specifications of X1 producer, i should change liquid every +-9/12 moths.

Waiting and see.
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post #14 of 36 (permalink) Old 02-05-2020, 06:29 AM
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Been using distilled water with ~20% mix of Mayhems XT-1 clear concentrate for 2.5yrs.

Loop at initial build at Q3 2017 was:-

EK Supremacy Evo TR4
EK X-RES 140 Revo D5 PWM
EK ZMT 3/8" 5/8"
Barrow fittings
2x Magicool 360 G2 Slim
MSI GTX 1080 Seahawk EK X

All blocks, rads, tubing, fittings were cleaned at build of loop as listed above, first with tap water, then distilled water.

I changed to a RX Vega 64 with EK-FC Radeon Vega (copper/plexi) few months after initial build. The coolant was drained and reused as it looked clean & clear. Few months later the CPU block was changed to Bykski A-Ryzen-ThV2-X, again coolant drained and reused, as it looked clean & clear.
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post #15 of 36 (permalink) Old 02-05-2020, 06:52 AM
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I've ran loops up to 3 years on destilled water and G48 in 50/50 mix with no buildup or corrosion. I only flush the loop if I change hardware every 2/3 years.
At the end of the day it is a gamble but periods of 6 months or less are not necessary unless you are gonna use pastell or other show fluids.
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post #16 of 36 (permalink) Old 02-06-2020, 04:57 AM
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Really just depends on what is in your loop. All copper blocks, clean rads, distilled+ biocide, and not caring that the copper goes black when oxidized I can go 5+ years.


Throw some nickel blocks, colored fluids, and questionable rads in there and I'd be down to a few months.

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post #17 of 36 (permalink) Old 02-13-2020, 09:21 PM - Thread Starter
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Thx for the tips y'all. Figure I'll call it somewhere in the middle and flush it around July (8months from installation)

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post #18 of 36 (permalink) Old 02-14-2020, 03:45 AM
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Quote: Originally Posted by gupsterg View Post
Been using distilled water with ~20% mix of Mayhems XT-1 clear concentrate for 2.5yrs.
EK ZMT 3/8" 5/8"
Barrow fittings

Maybe slightly offtopic, but how did you find the ZMT tubes with Barrow fittings? Did you have to do any fiddling to make them work? I'm looking into this setup and I've been reading ZMT is a bit too tight with most fitting manufacturers (outside of ek). TIA!
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post #19 of 36 (permalink) Old 02-14-2020, 05:45 AM
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Quote: Originally Posted by Asunder View Post
Maybe slightly offtopic, but how did you find the ZMT tubes with Barrow fittings? Did you have to do any fiddling to make them work? I'm looking into this setup and I've been reading ZMT is a bit too tight with most fitting manufacturers (outside of ek). TIA!
Worked really well IMO, I don't think I did anything fiddly. I hand tightened, warmed tube with hair dryer for minute or so prior to using fitting on it, I used THKN-3/8-V3. I haven't used any other fittings or tubing, only done 2 WC builds, I would say it's a snug fit, but have nothing to compare it to.

Spoiler!


Feel free to private message if there is more you'd like to know of my experience with the tubing & Barrow fitting.

Last edited by gupsterg; 02-14-2020 at 05:51 AM.
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post #20 of 36 (permalink) Old 02-14-2020, 06:29 AM
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Don`t understand how people use only distillate water.....
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