Brian remarked >> Iain Street laid this down on his screen : >> >> >> Would it be worth putting a sediment filter in the system, before the >> pump?
> I was in Plumb Centre last week and they have a magnetic vortex central > heating filter Try Magnaclean http://www.adeysolutions.co.uk/magnaclean_professional.asp or Fernox TF2 Beeky
