(1)
After a section of a potable water system has been completed, and before it is placed in operation, a water pressure test or an air pressure test shall be conducted.
(2)
A pressure test may be applied to each section of the system or to the system as a whole.
(3)
Where a prefabricated system is assembled off the building site in such a manner that it cannot be inspected and tested on site, off-site inspections and pressure tests shall be conducted.
(4)
Where a prefabricated system is installed as part of a water system,
(a)
all other plumbing work shall be tested and inspected, and
(b)
the complete system shall be pressure tested when requested.