Finally gave up

[Wee Man]

After weeks of waiting on the chemical flush doing its stuff and
failing miserably, I drained the central heating and took all the radiators
off. Didn't make a mess for once .

Flushed them out in the back garden, turning it to a mud bath in the
process . The colour of the stuff in them was boggin.

The heating seems to be working at long last, just in time for the
warm weather LOL.

 

[lord nicon21]

lol good job how long did it take you?

 

[htgeng]

put one of these in the return from radiators and see how much extra nasty stuff you can remove http://www.magnaclean.co.uk/

 

[Lurker]

Wee man you used the wrong chemical. DS 40 would have done it.

 

[Wee Man]

Probably did use the wrong stuff, should have asked on here first, but you live and learn as they say

Took about 4 hrs to do. Wasn't in too much of a hurry, more concerned with not spilling black gunge on the new carpets