Cooling fluid question

[Deleted member 61728]

Is it normal for a wc setup to lose a small but noticeable amount of fluid over a period of time though evaporation if there are no obvious leeks big or small ?

Im saying this because this im using blue feserone at the moment and
and have run out.So ive looked everywhere for some more but quite find any in stock ,is it okay to mix a very small amount of clear feser one to make up any differnce ? Or is there a cheaper solulation ?

Thanks

 

[Bubo]

I would just top it up with distilled myself. Maybe even the de-ionized stuff you get at Halfords. That stuff shouldn't have any chemicals as such in it, it should be pure water, and as such all you would be doing is diluting your feser blue slightly. As for the apparent water loss without leaks, yes I think it is possible, I put it down to water being absorbed into which ever bits of the loop can absorb water. Is the water loss you've noticed an ongoing process? Or is it as new loop which seemed to drop the water level after a few weeks and then stop?

 

[Deleted member 61728]

Its an old loop about 1 year now atleast it appears to be a ongoing process though the odd thing is ive been around every joint and none of them appear damp or look like like evidence of a small leek.

Would mixing a very small amount of distilled into the fesser still significantly reduce the non conductive properties ?

How often should someone drain down a loop and refill the system to prevent any blockages ??

 

[Bubo]

I suppose it would degrade the non conductive properties, though I have read that over time supposed non conductive fluids lose their effectiveness anyway due to gradual build up of contaminants in the water. The one good thing about UV fluids though is that evidence of leask are easier to spot I guess, though it is puzzling why you seem to have a noticeably constant fluid loss without any eveidence of a leak.

As far as draining/maintenance goes, the only reason for doing this is if your temps have gone up since new, such that you cannot maintain your clock or you have to turn your fans up. Or if you want new fluid to bring you back into non conductive spec (see above)