Radiator initial Flush foam?

[Marky Mark]

To be honest if you prep the loop properly to begin with modern coolants and designed to run for extended periods of time. If you want to clean out every 6-12 months then there's no harm in it, but you can leave a perfect system running for a couple years now.

There are users who have plain copper blocks, distilled water with biocide and EK's ZMT rubber tube and had zero issues for years.

Wow, that's pretty sweet! I will start a log and if the cooling performance doesn't dip in 6 month or 12 months then I will leave it in.

 

[Toothy1911]

I remember flushing a phobya rad many years ago and a pea sized lump of solder came out

 

[clone]

Both my black ice rads where super clean and so was the inline filter while running a cleaning loop before the final one.

 

[Marky Mark]

Blitz part 1 is purley for cleaning the radiators. It's phosphoric acid essentially so will strip all the crud out. Good on old radiators too if they've been sat for a while or had some staining dyes in them. Blitz part 2 is the ph stabiliser so swirl some of that inside a rad after part 1 as part of your flushing, and also for cleaning a pre-built loop.

Lucky I picked this up now. I had 1st blitz kit. Radiators both where clean tho as nothing in the filter.