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Help me clean red dye

J

JLangevin

[H]ard|Gawd
Joined
Apr 13, 2007
Messages
1,181
So I ran some red EK Coolant for a while (yeah, I know) and after flushing with distilled water many many many many times, my distilled water is still turning purple. I cant get it out! Ive even tried oxi-clean.

Before I start pouring acid like Vinegar in my system to flush it, What are your recommendations for getting the residue of red dye out of the radiators and system?!

This is how it looks after running for a bit.

EDIT: Forgot to mention that all the tubing has been replaced, and the res is not stained in the least.

8962798237_1aebddc084.jpg
 
It's best to just take down the rads and put hot water in them and well shake them, repeat it till the water comes out clear. There will be pockets where the dye could be resting and the flow isn't getting enough pressure through to get it all out.

I would avoid putting vinegar in the loop or any cleaning product.
 
In addition to what FearXI said, I would also disconnect the pump and create a fresh flushing station. On one side, 5 gallon bucket with fresh water, other side something to catch or drain the water that has passed through the pump. Turn the pump on, let it suck all the water out of the 5 gallon, repeat until it runs clear.

You could also include the rad in this flush setup, but I would start with the hot water / shake method first.
 
Have you just been flushing?
You probably need to break everything down completely. Take your blocks apart and clean them out. If there is plasticizer build up in your tubing it has probably absorbed dye so you will have to take a look in your tubing to check for that. If there is dyed plasticizer in your tubing you will have to clean it out as well (I've always used some pieces of sponge and a wood dowel to ram it through).
 
Nope nothing has worked. I've put extremely hot water inside the rads and shook them for 10min refilling with hot water several times. Flushed the entire system 6 times with a total of 34liters of distilled water. I've used bleach even as a last ditch effort (rinsed and flushed thoroughly out) and it still turns pink.

At this point I figure there are clumps in the lower rad that I just can't get out.
 
just let it run and ever time it starts getting purple change the water it might take a while but it should slowly get less purple
 
bleach is corrosive would not recommend. jump pin 4 & 6 then I started with new lines cleaned mine with tap water open up the circuit ran several gallons through used the pump to change the coolant to mouthwash. I had to run and change it a few times. Ive been running mouthwash ever since. no discoloration or algae lavoris big lots brand is non corrosive. whatever you use test it in a small container with a piece of steel for several days. if it has methanol it will rust. don't use a corrosive in your system
 
Fuz, I did the tap water flush method for over 2 hours before writing the OP. The red simply will not come out of the lower Rad. I narrowed it to the lower rad, about to just toss and replace it at this point.
 
I would put vinegar inside the radiator, shake it for about a minute, pour it out and see if it has any red color. If that didnt work, I would get some radiator flush from the auto parts store and try that, then again my radiators are $100+ each and not easily replaceable. And this is exactly the reason I will never use anything but distilled water in a loop.
 
I would definitely not use anything high pressure, or you could risk the solder joints failing due to the pressure.
 
sok0 said:
I would definitely not use anything high pressure, or you could risk the solder joints failing due to the pressure.
Click to expand...

While that's definitely true, if his other option is to replace the rad with all the red poo in it, he might give it a shot anyway?
 
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