Trying a Radiator Flush

The shop had pointed out that the coolant was dirty, and I also noticed it didn’t look great when I opened the cap myself.
Turns out there are flushing agents out there for this, so I gave it a shot.

You have to rinse it out multiple times, so it’s quite a lot of work.
The water that came out was pretty dirty, but when I looked through the cap, it didn’t seem all that different…
As for all the waste coolant, I soaked it up with cat litter and disposed of it that way.