Water Levels

stuie

stuie

stuie

Soldato
Joined
29 May 2012
Posts
3,395
Location
Dorset
So I built my system a few weeks ago doesnt get constant use but over the last month it will have had a probably 5-60 hours usage since installing my concern is that im still getting a little water level drop maybe 1-2 mm over about 15 hours usage spread over 4/5 days. Im using bright orange liquid everything seems dry and theres no orange stains.

Is it normal for a system to take 100+ hours use to fully bleed?
 
It can happen, just keep topping it up until it stops disappearing. I would also have a look around your system to see if you can spot any leaks, even a small tiny leak from a fitting can cause this as it leaks and dries up over time... not exposing itself to you.

I usually use white tissue paper and rub it around the fittings and around my waterblocks to see if theres any stains.
 
It'l just be the little air bubbles gradually working out of the system :)

Though when it happened to me I found a hairline crack in a radiator :p
 
I had a problem with a falling water level in one of my rigs. It was the one with a pair of Asus Matrix Platinum 7970s in it, I used it for a lot of benching over several hours and the heat from the cards made the tubing sag lowering the water level.:eek:
 
I had a tiny crack in my radiator. It wasn't big enough to make it leak, so this largely went unnoticed for my first two builds. I would check the radiator for any coloured residue from dried coolant by wiping the fins with a damp kitchen towel, it is how i found my leak. Though it probably is just air finding its way into the reservoir.

What reservoir do you have? (to give an idea of the drop in coolant)
 
Just had to top up a few more mm again if it helps to diagnose when i take to top off my res theres a noticeable hiss as air is being released
 
some water will pass thru your tubing more tubing will allow more diffusion
i run my system constantly with no visible leaks etc but res will drop a millimetre or 2 over a few weeks and can not see anystaining on any joints etc
reading up on it i found this

any "plastic" permits some diffusion of gases.

Because of water molecules smaller molecular

weight (compared to nitrogen/oxygen) water

vapour will diffuse faster that air throug the plastic.

So because more water vapour diffuses outward

of Your bottle as air diffuses inward, the bolltle will

deflate. But beware! The influence of temperature

on the partial vapour pressure is very strong!

To get meaningful results, You have to have the

temperature in the bottle constant within some

tenths of a degree.

This diffusion depends on the number and dimension

of microscopic voids in the plastic.
 
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