I Recently cleaned my system using "Fernox DS40" (plus neutraliser). Drained + flushed 4 times as per instructions, then refilled + Fernox protector added.
Ever since, it continually fills with air and needs venting every day. Only happens when the boiler is hot, no problem when the stat is turned to minimum.
Any suggestions?
Ever since, it continually fills with air and needs venting every day. Only happens when the boiler is hot, no problem when the stat is turned to minimum.
Any suggestions?