I don't know about a chemical means of rust removal or conversion because I tend not to use them. Is it not possible to arrange an electrolysis electrode poking into the area concerned? There are not many areas of a stripped Lister H that are totally inaccessible.
I agree, there is little worse than pumping rust coloured water but I found that changing the pumped water a couple of times on a trial run cured the problem - there is, after all a limited amount of dissolvable ferrous oxide available to colour 750 gallons/hour throughput (H2). I found that having flushed the system through a couple of times, it tends to stay reasonably clear year on year. You could of course add some a delicate shade of blue in the form of a vegetable dye to the water to disguise it for the first few runs :)
Mark
Posted Via Usenet.com Premium Usenet Newsgroup Services
---------------------------------------------------------- ** SPEED ** RETENTION ** COMPLETION ** ANONYMITY **
----------------------------------------------------------
formatting link