Powerflush Query

[lufcmark]

I have just been asked to powerflush an old 10 rad system on a church...Big old column rads, inch & a half threaded pipe work etc.

Radiator valves & pump valves seem reasonable and there is a water main.

Anyone had any grief with anything similar?

Thanks

Mark

 

[bengasman]

If it is an old one pipe system with top bottom connections, you can forget powerflushing. It may do some good, but will not get the system clean.

 

[lufcmark]

Thanks for the reply bengasman...I should have mentioned that it is a two pipe system.

 

[bengasman]

Bottom/bottom connections?
If it's not a rush job, I'd preclean it with F3 for a few weeks when the heating is running.

 

[lufcmark]

Yes. BBOE connections...it's a bit of a rush job as it's been dropped on us at short notice.

 

[bengasman]

In that case, warn them that this is not at as easy as a modern system, and buy loads of FX2 and ds40.
And make sure you do a superb cya about leaks.