substitution request - Alliance Construction Solutions

3. Waste, Drain and Vent Piping: All waste and vent piping, including building
drain, roof drain and building sewer, shall be subjected to a water test. All
openings in the piping system shall be tightly closed, except the highest opening,
and the system filled with water to the point of overflow. The water shall be kept
in the system, or in the portion under test, for at least 15 minutes before inspection
starts; the system shall then be tight to all points. No section shall be tested with
less than a ten foot head of water. Roof drain piping shall be closed at the lowest
point and filled with water to the point of overflow.
4. Sump Pump Discharge: With water in sump and pump running at full capacity,
check for leaks until satisfied that system is tight.
5. Repair piping systems sections which fail required piping test, by disassembly and
re-installation, using new materials to extent required to eliminate leakage. Do
not use chemicals, stop-leak compounds, mastics, or other temporary repair
methods.
6. Drain test water from piping systems after testing and repair work has been
completed.
3.07 UNDERGROUND PIPE INSTALLATION:
A. Clean fittings, nipples and other field joints thoroughly before coating.
B. Protect ductile cast iron pipe installed below grade with polyethylene encasement applied
in strict accordance with ANSI/AWWA C-105/A21.5.
C. Install ductile iron pipe below grade as prescribed by AWWA C-600.
D. Provide concrete thrust block and 3/4” threaded steel tie bar at each change of direction
on underground pressure pipe. Imbed tie bar in thrust block and connect to upstream
fitting. Paint tie bar with two coats of bitumastic #50 paint.
E. Bury all outside domestic water, waste, and storm piping minimum 5’-0” below grade
(earth cover below finish grade) to top of pipe.
3.08 FIELD QUALITY CONTROL:
A. Preparation for testing: Prepare hydronic piping in accordance with ASME B-31.9 and as
follows:
1. Leave joints, including welds, uninsulated and exposed for examination during the
test.
2. Provide temporary restraints for expansion joints which cannot sustain the
reactions due to test pressure. If temporary restraints are not practical, isolate
expansion joints from testing.
3. Flush system with clean water. Clean strainers.
4. Isolate equipment that is not to be subjected to the test pressure from the piping.
If a valve is used to isolate the equipment, its closure shall be capable of sealing
against the test pressure without damage to the valve.
5. Install relief valve set at a pressure not more than 1/3 higher than the test
pressure, to protect against damage by expansion of liquid or other source of
overpressurization during the test.
B. Testing: Test hydronic piping as follows:
Project No.: 10145
550 15 th Street Dual Brand Hotel
12/23/2011
22 1116 - 16 BASIC PLUMBING PIPING