PLUMBING DESIGN MANUAL
FOR VETERINARY MEDICAL UNIT PROJECTS
DEPARTMENT OF VETERANS AFFAIRS
February 2000M
1.
CRITERIA UNIQUE TO VA
1.1
Plumbing design and plumbing seismic design shall only be
indicated on "P-Series" drawings (see VA Design and Construction
Procedures, "Drawings").
1.2
Piping shall be shown on the same plan as the fixtures being
served. This does not apply for interstitial areas.
1.3
Pipe size shall be indicated on both floor plan and riser diagram.
1.4
Most VA plumbing fixture units are less than that indicated in
standard plumbing codes (see Article, PLUMBING FIXTURE SCHEDULES).
1.5
If reagent grade water equipment (reverse osmosis and/or
deionization) is required, it is provided by the medical center
and is not in this contract (see Article, REAGENT GRADE WATER
SYSTEM).
1.6
The following shall be indicated on the plumbing drawings:
A.
Drainage area in square meters (feet) for each roof drain and
totals for building at outside building wall.
B.
Fixture unit count at base of each soil and waste stack and
for each sanitary sewer at outside building wall.
C.
Invert elevations for all sewers at outside building wall.
D.
Centerline elevation for all pressure systems at outside
building wall.
E.
Floor elevation at each level.
1.7
Floor drains shall not be installed in rooms with water closets.
Provide public toilets rooms containing two or more water closets
or a combination of one water closet and one urinal.
1.8
Liquid ring air compressors and vacuum pumps shall not be
installed at sites subject to droughts. All sites in California
are in this category. Water quality requirements are indicated in
Master Specification 15491.
1.9
Sub-soil drainage is a plumbing item and shall be indicated on
architectural and plumbing drawings.
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