Lead you can away with if it is for waste, but if it is damaged you need to consider a good repair - especially as it is waste from the bog, you don't need that going wrong at 19.00hrs on a sunday. Do the job properly and swap it for plastic, it will be much safer and less pfaffing around in the long term - send the Mrs to visit her sister for a couple of days.
If anyone has any lead water mains pipes coming into the house the water people will ordinarily change those free of charge - don't assume they will, still check with them. Some used to argue that anything after the meter was yours, and some just used to change any lead up to the stop tap in the house. There were some really old places out in Leamington Spa & Warwick that still had lead indoors and we swapped that out for copper from the stop tap indoors.
My fellow piped water engineers, and myself used to buy most of our kit from BES. Not next day delivery, but pretty close, so you need to have a comprehensive shopping list before ordering. When setting up an account just tell them you are a plumbist and that you want a catalogue sending.
Business as usual at BES.co.uk. Next day delivery on more than 15,000 plumbing supplies online in the UK. Contactless delivery to your door. Buy now.
www.bes.co.uk