Can you remove all the lead pipe back to the main (110mm) down pipe?
Strip out as much of the lead as you can, take it back to a neat cut on a straight part of the pipe, on which you can join the new plastic pipe, take the old lead down to a scrap metal dealer and get some money for it, it will pay for the new plastic pipe work plus a pint of two.
Fine an â€˜independentâ€™ plumbers merchants and with the lead pipe dimensions (take the other end of the neat cut) in hand and ask for an pipe â€˜adaptor ringâ€™ which will fit.
Depending on the dia of the lead pipe you may have to fit either 32mm or maybe 40mm â€˜sink wasteâ€™ â€˜trapâ€™ and â€˜pipeâ€™.
Thanks for both your replies. I have investigated further and decided to replace the bath as well as the washbasin. The bath outlet is also in lead and joins the washbasin outlet and the combined lead pipe goes into the horizontal upper end of the cast iron downpipe under the eaves, and is reasonably accessible. Do I cut the lead pipe and buy a fitting or do I remove the lead pipe and seal from the iron pipe end and get a plastic connector for that ?
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