power flush my radiators, how is it done ...

Hi all, with the winter nearly on us i have switched on my Gas Central Heating Radiators, at the beginning of the year i did introduce some Fernox into the system to CLEAN it out, after which i drained that out and introduced a Fernox Rust Inhibitor.

Over the last few weeks i have had a new pump fitted, the old one hadnt failed, it was simply very noisy, just a few days ago i had to have a new 3 way motorised valve fitted while all this was being done by proffesionals i removed one of the radiators because it appeared to be bunged up, it was.

Anyway, following two visits by proffessional plumbers removing and renewing the Pump and Motorised valve they both confirmed that my system could do with a PROPER Power Flush as i have a lot of Sludge.

So can the members please let me know how does this Power Flush thing work ?, it does seem there is more than one way of doing it so which way is the best and the longest lasting, i have had enough of trying to do this job myself !.

Do they simply remove the pump and put a pump of there own in it's place etc. or do they treat/clean each radiator seperately, they must introduce some chemicals as well, how long can it take etc.

Any information at all will help me understand the process that is involved, thanks.

tim

its done with a mix or cleaning chemicals and water circulated at high speed rarther than pressure with a powerflushing pump
the flow is also reversed several times

each rad should be done seperatley and thumped with a rubber mallet to loosen the carp

good flush with clean water and add inhibitor

you might get the odd weeping rad valve etc thats a chance you take

kevplumb:- thanks for that kev, can i please have a little more detail on the business of cleaning each radiator individually, does this involve removing the big square plug that is at each end at the top corner of each radiator ?, i guess it must be removed otherwise how do you get the flow going fast enough. unless of course you have to remove each radiator and turn it upside down !, but then how would the pipework between the radiators get cleaned ?.

tim

you close all the other rads off and run the full flow through one rad at a time

kevplumb said:

you close all the other rads off and run the full flow through one rad at a time

Click to expand...

thanks kev, elimentary my dear Watson.

tim