In article .com,
Aidan wrote:
If left inside a heating system, the acidic flux residues can cause
serious problems with corrosion.

Doesn't it get diluted by the water to the extent it can't do anything? It
also seems to stop corroding the outside after a while - the reaction
becomes used up.

--
*Don't sweat the petty things and don't pet the sweaty things.

Dave Plowman London SW
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