I went yesterday and was asked not to touch it. The house has been sold and they don't want any money spent on the house unless urgent. I nipped up the drain off a tiny bit in the hope that this is where it's leaking but I don't hold out much hope. Simple as that, do not touch. The floor is ruined and is spongy. Same story upstairs with the leaking basin. Do you have to do it I got asked? The plastic waste had worn and cracked with age. Again a very spongy floor. So bad I could just push the pedastal down into the floor to remove it. Yuk..the floor is wasted but some landlord has offered them money for the house as it is. Ah well. Thanks to all for the replies.