The installer instructions for my new boiler say that you must not fill the (CH) system with water from a softener (although there's nothing about this in the user instructions). Can anyone tell me why (I shouldn't fill with softened water)? I think it may be because the water may be salty if the softener's just recycled and that could attack the heat exchanger. If hat's the reason, I'd assume it's OK to fill with water from the softener well after it has regenerated. Roger
- posted
17 years ago