I remember reading a while back that you should clean a rad before you connect it up to a loop. Now will submerged in a bowl of water suffice? I do remember something about submerging in a vinegar solution.... is this right or not? Thanks
50/50 mix of water and vinegar... pour it in and leave it for 2 hours...
OUTSIDE connect a hosepipe upto one of the barbs (hosepipe is 1/2" ) using a hoseclip.. Turn hosepipe on to full wack for a few minutes.... That will get rid of the worst of it.
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