The water supply shall be adequate, of a safe, sanitary quality, and from an approved
source. Hot and cold running water under pressure shall be provided to all washers,
sinks, lavatories or hand-wash basins. All sewage shall be disposed of in a sewerage
system that has been approved by the city and county health department. All plumbing
shall be sized, installed and maintained in accordance with applicable plumbing and
sanitary laws so as to carry adequate quantities of water to required locations throughout
the establishment; to prevent contamination of the water supply; to properly convey
sewage and liquid wastes from the establishment to the sewerage system; and so that
it does not constitute a safety or health hazard or create an unsanitary condition
or nuisance.