POint is that the lead is exposed , without an oxide layer, to the water, so we all go mad with lead poisoning. I've not done any "science" on it but my instincts suggest that that's ******! There's another reg that says you shouldn't have any lead in the water supply AFTER a piece of copper, because the dissimilar metals business makes the lead go into solution, Hmm, really? I wonder what the quantities are!
Lead loc's are sort of OK when you've done a couple but has any one tried LeadLine's? I found they don't work if you do them up as per the instructions - the O ring splits every time, with or without lubricant. If you do it half up and then undo it a bit and get the O ring in the right place then do it up again, it's OK. And at least you can get them off if you need to, unlke lead-loc's.