Sec. 494. Testing of plumbing system.
The entire plumbing and drainage system within and to a point
three feet outside and away from the house or building must be
tested by the plumber in the presence of the Superintendent under
a water test as directed, proving the work tight under such test
to the satisfaction of the Superintendent. The said test must be
so applied to include all drains, soil, waste, vent and their short
branches: all calked and wiped joints, including ferrules and
cleanouts, so that as far as possible nothing but wiped joints and
flange joints will be made after the test. The water test will be
applied by closing the lower openings, and filling the pipes with
water to the level of highest opening above roof, and all openings
must be kept closed at all times by temporary plugs to keep out
sand, mortar, etc. The above test applies also to yard fixtures.
Water must remain in pipes at least two hours before test is made.
