Flushing Radiators

[tronder]

Is it really necessary to flush radiators these days, i know back in the day you needed to but with todays' quality control yay or nay?

And if so can i just run the whole system and then drain it and count that as a flush?

[toasty6776]

Yes, you should flush your rads. If you run your system and then drain it instead of flushing the rads, you risk having the gunk in the radiator clog your blocks.

[W-L]

11 minutes ago, tronder said:

Is it really necessary to flush radiators these days, i know back in the day you needed to but with todays' quality control yay or nay?

And if so can i just run the whole system and then drain it and count that as a flush?

You still need to flush them, usually a dozen or so rinses/shakes with tap water and a final few with distilled water will do the job. Some companies like EKWB pre-clean them but still require a rinse at the very least. 

[tronder]

ok thanks, dont need to flush EK CPU and GPU waterblocks?

[W-L]

12 minutes ago, tronder said:

ok thanks, dont need to flush EK CPU and GPU waterblocks?

It's not necessarily a bad thing to give them a quick rinse with distilled water to remove any dust if there is any. 

[tronder]

demineralised water same thing as distilled?

[W-L]

5 minutes ago, tronder said:

demineralised water same thing as distilled?

You will want distilled ideally if you can get a hold of it. 

[vong]

5 hours ago, tronder said:

Is it really necessary to flush radiators these days, i know back in the day you needed to but with todays' quality control yay or nay?

And if so can i just run the whole system and then drain it and count that as a flush?

Definitely yes. I just dismantled my system (after a year), flushed out the radiators and they were still full of junk which was unbelievable. They were flushed multiple times with warm water before going in the system too.

[AnonymousGuy]

I power flush my radiators by using a cheap submersible fountain pump in a bathtub filled with hot water.  Just let it go for 15 minutes.

 

 

Then you fill with distilled water for final rinse.

 

[NoobCase]

15 hours ago, AnonymousGuy said:

I power flush my radiators by using a cheap submersible fountain pump in a bathtub filled with hot water.  Just let it go for 15 minutes.

 

 

Then you fill with distilled water for final rinse.

 

I assume such a pump could be bought i  pretty much any Pet store? 

[AnonymousGuy]

1 hour ago, NoobCase said:

I assume such a pump could be bought i  pretty much any Pet store? 

I think I got this one at Home Depot, but yeah it's not a powerful pump it's just enough to get good flow to knock stuff loose.  Think it's about 140 gallon per hour.  Any ebay / amazon made-in-china one will also work, submersible because it makes it super easy to use.

[NoobCase]

15 hours ago, AnonymousGuy said:

I think I got this one at Home Depot, but yeah it's not a powerful pump it's just enough to get good flow to knock stuff loose.  Think it's about 140 gallon per hour.  Any ebay / amazon made-in-china one will also work, submersible because it makes it super easy to use.

Cheers  mate!