I wouldn't have thought you'd have to spend £450, but plumbers up here in the North East charge a lot less than in other areas. It doesn't have to be a CORGI job, but you do need to be competent - particularly if attempting a powerflush.
I've just fitted a Magnaclean on to a client's system which traps the nasty magnetite with the greatest of ease, and it's also easy to remove without mucking around with your rads. A superb long-term solution but it works slowly. Or you could add SludgeRemover to your system and let it swill around for up to four weeks, drain down and then add Boiler Inhibitor when you refill.
scarywalton, November 2007
