The first one about my own house.
Replaced my hot water tank, flushed system, refilled...I'm getting a tapping noise from the water pump although I have bled all the radiators...any ideas.
second question about a friends house. They have a downstairs bathroom and want to move the bathroom upstairs. The original downstairs bathroom would then be used to extend their pitifully small kitchen. Is it ok to run a soil pipe down through the floor from upstairs to join up with the original toilet outlet in the old bathroom floor, as digging concrete up round the side of the house could be a bit of a pain....or does the soil pipe have to exit the room the toilet is in immediately to outside and down the wall.
Many thanks for your help.