Today I went shopping for some accessories that would let me plug my radiator to the faucet so I can clean it a little bit.
I found out that Japan doesn't seem to carry the regular stuff most people are talking about on forums, such as fittings with G1/4" threads or 1/2" & 3/4 tubing.
I had to settle for slightly different accessories but in the end, it won't be a problem as it should only be for parts cleaning
1/2"ID 3/4"OD tubing equals to roughly 13/19mm but all stores I went to only had 15/20mm
Here's some cheap tubing I got with a specialized plug
Here's the faucet plug
And here's how they fit together
Radiator plugged and ready. I had to use one of the compression fitting meant for the loop to plug the tube into the radiator as they didn't have anything close to fittings with a G1/4" thread.
I set the water temperature to about 50 degrees (Celcius) and let it run for about 10 mins in one direction. Once done, I unplug with water still inside, shake the radiator a little bit and drain.
And then, same for the other direction.
I thought the insides would be clean after that but when I peeked
Sorry for the bad picture (phone camera) - it definitely looked dirty...I wonder if that's the same for all radiators ?
So I took cotton swabs and checked. Blurry picture but you can clearly see it wasn't clean at all, even after running hot water for 20 mins and shaking it...
Looks like I'll have to use vinegar !
I still flushed the radiator after that with some purified water (couldn't find any distilled water) and will repeat the process again later with vinegar.
I wonder, what do you guys have found when flushing your radiators ? Are cotton swabs supposed to be that dirty if you check the insides ?Edited by Gauvi - 7/15/12 at 10:30am