Current through Register Vol. 50, No. 3, March 20, 2024
A. General Testing
Requirements. The state health officer and/or the local plumbing official may
also require tests to be conducted prior to occupancy to assure that the
proposed design is satisfactory and complies with the intent of this code. Such
tests shall be made in accordance with approved standards, but in the absence
of such standards, the state health officer and/or the local plumbing official
shall specify the test procedure(s). In general, such tests shall indicate that
all fixtures properly discharge when flushed simultaneously with not less than
1-inch (25.4mm) of water seal left in the trap after testing and that there is
no evidence of sewer gas passing through the trap seal.
B. Roughing-In. The roughing-in test shall be
as provided for in other Chapters of this code.
C. Tests and Inspection of the Single Stack
Discharge and Ventilating Pipe System or any other Single Stack Plumbing
System. When a single stack discharge and ventilating pipe system (a specific
type of alternate designed plumbing system) or any other single stack plumbing
system has been approved by the state health officer under the requirements of
this Chapter, the following tests/inspections shall be performed.
1. Performance Test Required. In any building
in which fixtures or appliances, other than those specifically provided for in
Table 1811.D.5.5A of this code, are to be installed or in existing buildings in
which the single stack discharge and ventilating pipe system or any other
single stack plumbing system exists and additional fixtures are to be added,
the plumbing official shall require and supervise a performance test as
hereafter provided.
2. Application
and Restrictions. When required in new construction, the system shall
successfully pass the test before the building is permitted to be occupied. In
existing buildings where piping is added for additional fixtures or appliances,
such new piping shall not be placed in service until the performance test is
approved. Should the system fail to pass the test, the new construction shall
be modified as the plumbing official may direct, or the system shall be
reconstructed to meet the requirements of other Chapters of this code, or the
added fixtures and appliances shall be removed and all waste and vent pipes
permanently closed so as to form no dead ends and all wall and other openings
shall be put back in their original or finished condition.
a. Exception. Central washing facilities
connected separately to the building drain or sewer in an installation that is
otherwise constructed in accordance with other Chapters of this code are exempt
from the performance testing prescribed by this Section.
3. Performance Test. Every trap shall retain
not less than 1-inch (25.4 mm) of seal when subjected to the appropriate
discharge tests given below. These tests are designed to simulate the probable
worst conditions in practice. Each test should be repeated three times, the
trap being recharged before each test, and the maximum loss of seal in any one
test, measured by a dip stick, shall be taken as the significant result. The
number of fixtures to be discharged simultaneously when investigating the
effect of the flow of water down the stack depends on the number of fixtures
and on the frequency with which they are used. The number of fixtures to be
discharged simultaneously is given in Table 1811.D.11 of this code.
4. Test for Self-Siphonage. To test for the
effect of self-siphonage, the waste fixture shall be filled to overflowing
level and discharged in the normal way. The seal remaining in the trap shall be
measured when the discharge has finished. This test is most important for wash
basins, but it is not applicable for water closets which shall be flushed in
the normal manner.
AUTHORITY NOTE:
Promulgated in accordance with
R.S.
40:4(A)(7) and
R.S.
40:5(2)(3)(7)(9)(16)(17)(20).
