Ok, so I've been flushing my PA 120.3's for over a week now by filling them with hot tap water and leaving them for about a day or so, followed up with a good shaking and emptying.
When I do this I get a lot of white coloured water coming out of the rads so I'm assuming the flux is being dissolved into the water.
However, I've done this seven times now and I'm still getting the same amount of flux coming out.
I've read all the posts about the endless flushing of these rads but does this sound right still?
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