Magnetic filter and inhibitor

bjl · Oct 9, 2018

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

ShaunCorbs · Oct 9, 2018

I would add a l of fresh inhb in

Vicdiy · Oct 9, 2018

bjl said:
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

They don't change the cartridge just isolate with the valves and empty. If you google the make it will show you how. As ShaunCorbs said I would just add more inhibitor, you can't really have too much.

bjl · Oct 11, 2018

Vicdiy said:
They don't change the cartridge just isolate with the valves and empty. If you google the make it will show you how. As ShaunCorbs said I would just add more inhibitor, you can't really have too much.

Yes im going to change the inhibitor but is it better to drain the old water out and fresh water in or keep the old water in