I cleaned my loop with keurig descaling solution

[poop on my chest]

So I was given the idea on a different forum but I would like to share my results since it worked so well, my loop hasn’t been cleaned in a year and I run distilled water plus mayhems x1 clear. So I added about 3/4 of a bottle of the keurig cleaner which is mostly citric acid and ram my loop for about an hour. The Timelapse video is of the first 8 minutes. After the hour I drained the loop and flushed with about 2 gal of distilled water. It saved me the chore of having to take this gpu block apart. 
 

Before:

After:

Before:

after:

The fluid after draining:

[LIGISTX]

This is genius! Love it. 

[BiotechBen]

Bruh. That's epic. Wonder if it works for corrosion buildup as well.

[Enderman]

Is it an abrasive solution?

Inside of your block and res look a bit scratched up...

[poop on my chest]

The algae got destroyed and swept away within the first 10 seconds of running the loop, it seems almost too good to be true. I got the stuff at Walmart for 6-7$ a bottle

[poop on my chest]

Just now, Enderman said:

Is it an abrasive solution?

Inside of your block and res look a bit scratched up...

No it’s a clear liquid, the scratches are just the bubbles rushing through the loop, it looks like there’s pitting but those are all just micro bubbles

[For Science!]

28 minutes ago, poop on my chest said:

The algae got destroyed and swept away within the first 10 seconds of running the loop, it seems almost too good to be true. I got the stuff at Walmart for 6-7$ a bottle

That’s because it’s not algae… just residual coating from ingredients in the  X1, such as anti-corrosives. Given you just flushed through a corrosive agents, sure the coating goes away very wuickly.

[AnonymousGuy]

It's 12% citric acid according to the MSDS.  You can just buy citric acid in powdered form and make your own since it's a food ingredient.

 

I've used phosphoric acid because that's what Mayhem Blitz Part 1 is.   https://www.amazon.com/gp/product/B000VX1XDE/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1   diluted 50% distilled water is 25% phosphoric acid.   Never tried it in a whole loop assembly though but god damn did it shine up nickel blocks.