I wonder is someone could point me in the right direction to obtaining a replacement plug, my sister in law has been using bleach (she no longer does) which does not go down well with chrome, her pop up plug 1 1/2 inch diameter with a o ring attached it has a central internal thread attached and merely screws down in the fitting below and is operated by a lever which is located behind the tap, I am trying to source one of these but cannot seem to find them anywhere, could some one give me an idea where i can purchase a like for like replacement