... Needs flushing, then one of the anti-corrosives.
(Not for any problem, it's just I have a shiny new tank and pump, and you should have seen the crud in the old pump!)
- F3 to clean it out?
- Which treatment?
Pretty old boiler, Glowworm fuelsaver F.
Local merchants all seem to want 25 quid a go, which isn't funny.
Andy