http://www.fernox.com/?cccpage=break_down_guide&sub=2
if you can drain the system refill it. you can run it for a while then re drain it gets most of the loose stuff out.
can you get a hose to the loft or you can make a temp hose off the ball valve mains feed.
if you can drain the system refill it. you can run it for a while then re drain it gets most of the loose stuff out.
can you get a hose to the loft or you can make a temp hose off the ball valve mains feed.
