TM 10-5410-221-24
WATER SYSTEM
Section I. PLUMBING COMPONENTS REPAIR INSTRUCTIONS
b. Removal.
Remove the drain sump as
This section contains the water system pluming
components used to supply the shelter with hot and cold
c. Repair.
water and drainage provisions. The water plumbing
Repair drain sump assembly as
system consists a centrifugal sump pump, sump
assemble check valve, water and drain tube assemblies
d. Installation.
Install the drain sump as
manifold assemblies, and external supply and drain
hoses.
9-4. Check Valve
9-2. Centrifugal Sump Pump
a. General. The check valve is used to re-strict
a. General. The sump pump is used pump water
flow of drain water in one direction only to prevent waste
water from backing up into shelter.
from the stainless steel sum located inside the shelter, to
b. Removal.
Remove
the check valve as
an external drain line.
b. Removal. Remove the sump pump assembly
c. Repair. Check valve is not reparable. Remove
and replace defective valve only.
d. Installation.
Install the check valve as
continuity light or other suitable continuity checking
device. Continuity must exist between the following pins.
A to B, A to A to D, B to D, and C to D. Continuity must
exist between pin E and the pump case (ground). If
9-5. Water Supply and Drain Tube Assemblies
above tests indicate an op circuit replace the pump.
d. Installation. Install the sump pump assembly
a. General. The water and drain tube assemblies
are used to supply hot and cold water to the shelter and
e. Repair and Overhaul. The sump pun is not
drain waste water from the shelter. They consist of
provisioned for breakdown or replacement of parts.
stainless steel tubes with flared ends and equipped with
Remove and replace defective pump assembly only.
nuts and sleeves.
b. Removal. Remove the supply and drain tube
9-3. Drain Sump Assembly
assemblies according to sequence of index numbers
assigned to figure 9-1 and observing the following.
a. General. The drain sump assembly used to collect
(1) Remove vacuum nipple and cap assembly
(1, fig. 9-1) from mounting bracket by removing nuts (2,
waste water from shelter al discharge it to the sump
3, 4), packing (5) and elbow (6).
pump through meal of a float switch inside the sump.
(2) Remove nut (7) and packing (8) from tee
(9). Remove nut (10), washer (11),