Hi
we have a new boiler fitted 3 yrs ago with a magnetic filer cartridge and inhibitor??. over the last couple of years we had to top it regularly due to a small leak. Hopefully the leak has now been found and the cartridge is overdue changing. Should i drain the system down fully and replace with fresh water or should i keep the old partly treated water in there when i replace. surely the fresh water will have more oxygen in it causing more corrosion??? it does look to be fairly clear when i have drained off a bit
thanks
we have a new boiler fitted 3 yrs ago with a magnetic filer cartridge and inhibitor??. over the last couple of years we had to top it regularly due to a small leak. Hopefully the leak has now been found and the cartridge is overdue changing. Should i drain the system down fully and replace with fresh water or should i keep the old partly treated water in there when i replace. surely the fresh water will have more oxygen in it causing more corrosion??? it does look to be fairly clear when i have drained off a bit
thanks