MIL-HDBK-1005/7A
c)
Piping Arrangements.
Use a single riser pipe as
both inlet and outlet.
(1) Provide an overflow and drains.
Drains
should not be connected directly to sewers.
(2) Place valves on all pipes except the
overflow.
d)
Appurtenances.
Provide the following
appurtenances:
(1)
Ladders on the outside of the tank and on
the roof.
(2)
A roof hatch with lock.
(3)
Screened vent, altitude valve, and overflow.
(4)
Water level indicators and alarms.
(5)
Bottom access manholes.
(6)
Sampling access points.
e)
Structural Design. Criteria for the design of
reinforced concrete and prestressed concrete standpipes are
given in NAVFAC DM-2.04. For steel standpipes, use AWWA
Standard D100.
8.3.2.4
Elevated Storage Tanks . Design elevated storage tanks
in accordance with the criteria given below.
a)
Height.
Use the same criteria given for
standpipes.
b)
Piping Arrangements.
Use the same criteria
given for standpipes.
c)
Appurtenances.
Provide the following
appurtenances:
(1)
Tower, outside tank, and roof ladders.
(2)
A roof hatch with lock.
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