On 6 May, 10:15, Horse With No Name wrote:
Martin Pentreath wrote:
On 4 May, 14:31, "Ian_m" wrote:

Since been informed Fernox do some additive you can add and leave for a week
that will disolve the sludge so no need to takes rads off.

I think DS40 is the most agressive stuff which Fernox makes, it will
dissolve most things (including radiators if you're not careful).

So you inject the additive, leave for a week then just drain off?
Then presumably you refill with an inhibitor?

Danz

Here's the Fernox info on DS40 ...
http://www.fernox.com/?cccpage=DS40&sub=1