Quote Originally Posted by Captain H.N. View Post
How does UV dye and antifreeze act as an anti-microbial? Neither one can... and tbh you don't need antifreeze or anything like it in a loop.

There's nothing with the radiator that would have anything to do with this problem, but you should flush it with some vinegar as suggested. What I don't get is why you know distilled is better yet you don't use it...
I will not use any antifreeze liquid of car radiators, it is slimey, and I've seen many pumps damaged by this liquid.

Btw I always used supermarket deionized water 'cos in the past I never had problem of this kind... I can say the first three years.
And I changed my watercooling rig completely in these years, of course.

The problems started when I decided to polish some waterblocks with Sidol, an amonia based product.
It seems even if I wash them very well, some ingredients in Sidol doesnt go away.

This time I bought BIDISTILLED water from Ybris Cooling store.
Its a bit pricey (4.50€ / liter), but I think it will works very well.

I tried to clean a waterblock that was oxided (brown-black) with ketchup.
The dark goes away, but now copper its opaque and its pinky-reddish, and I think its not the right look for the copper.
It should be soft pink, and it should shine.
The same thing would happen If i was using vinegar + salt, I think.

I dont want to use again that Sidol "amonia based" product to make it shine.
What can I use?