MAX OVER KILL RADIATOR CLEANING & FLUSHING GUIDE
Here I will show you how to "Max Over Kill" clean and flush your radiators. This is way over kill for most people. Before putting radiators in your new rig you should at the very least fill them with distilled water, shake it up a bit, dump it out, rinse and repeat at least three times. For many people this is all you need to do.
I plan to run a red colored coolant which are known to discolor if your radiators are not clean enough. I'll be using Mayhems Blitz part 1 and part 2. This is basically using Mayhems instructions with my own twist to it. In other words a few more steps. I have the time now, and want to be sure my radiators are as clean as possible.
Here's the Mayhems Blitz kit. I've used this product before and been very happy with the results.
The first step is to flush the radiators with hot water from the faucet. I used the utility sink in my garage.
I have an adapter hooked to the faucet with a "Y" so that I can flush two radiators at a time.
Just crack the faucet enough to get good water flow, run the hot water for 30 minutes on all radiators.
This will get the bulk of any residual flux, and the big chunks out.WARNING: Do NOT turn the water on full blast or you could damage your radiators!
Now fill the radiators with Blitz part 1. I used three bottles and had to dilute it just slightly more than the directions to fill all six rads.
Notice I have the port ends raised to help purge the air out completely. Also that funnel screws into a G1/4 port, and works great to pour the Blitz in with. Put the plugs in and let sit for 12 hours. You can shake them several times if you'd like to. I set this up in the evening and let them sit over night.
Now the next morning, back to the sink and dump the Blitz part 1 down the drain. Hook the radiators back up to the faucet and rinse for five minutes with hot water to get all the Blitz part 1 out. Here's a shot of the two 280s.
Here's my cheapo flush machine that I put together on my last build. It's just a water filter purchased at Home Depot and a pond/fountain pump.
I tried running all six radiators together, but the pump was not strong enough, so I did three radiators at a time. Mix up the Blitz part 2 and pour into the bucket, and just let the Blitz part 2 run thought the radiators and filter. I did six hours per three radiators, you could go up to 12 hours no problem if you wanted to.
The second batch of three rads.
Now take the radiators back to the sink, dump out the Blitz part 2 and flush another five minutes of hot water to get all the residual Blitz part 2 out.
Finally the last step is to fill the radiators with distilled water, shake and empty out. Three total runs of fill with distilled water, shake and empty.
Here you go... you can't tell from the outside, but these radiators are as clean as they can be on the inside, and my coolant should stay beautiful