waste pipe

I am trying to replace the waste trap beneath my kitchen sink. The old, broken one is labelled : Marley Extrusions 11/2 / 40 PP BS3943 I cannot find this brand anywhere. I showed the old trap to the local plumbing merchants and they sold me a McAlpine trap, saying it should definitely fit...

Hi, I appreciate this is probably going to make me look stupid but having no clue about even simple plumbing I've come here to ask the experts!! We've recently noticed the drum of the washing machine filling with water that goes down the kitchen sink. I've had all of the pipes off under the...