They must safely remove waste water while venting waste water odors and gases and keeping them out of the living quarters. Starting at the top floor, open all the sink faucets. Design of plumbing systems for multi-storey buildings.
Go to the basement or the lowest level in your home, then open the faucet in your laundry tub or lowest sink, and let all the water from the above floors drain out. Society of Public Health Engineers. Public Health Engineers have always been wary of incorporating mechanical devices into drainage systems.