Replace PVC Hand Operated Ball Valves and Check Valves
Ensure graywater pipes have been sanitized IAW procedures contained in TB MED 577
before attempting any repairs. Failure to observe safety precautions may result in
serious illness or death from biohazards.
If the unions of the valve are serviceable, the replacement valve may be installed using
the existing unions. Retain the unused unions as repair parts.
Many repairs on the Water Treatment System plumbing may be accomplished if the CBL
is operating with no water reuse. However, repairs should be performed with the CBL
secured from routine laundry operations if at all possible. Refer to TM 10-3510-226-10
for instructions on operating the CBL with no water reuse.
1. Flush and drain Water Treatment System IAW procedures given in TM 10-3510-226-10.
2. Place CBL out of service and disconnect power.
3. Unscrew or cut out damaged CPVC valve (Figure 4, Item 8) as required.
Valves V-52 (Figure 4, Item 9) and V-60 (Figure 4, Item 10) may require the installation
of a coupling and an additional 2-inch section of PVC pipe for installation.
4. Clean cut and prime cut ends.
5. Install replacement CPVC valve (Figure 4, Item 8) and fittings as necessary, and cement in place.
6. Operate CBL IAW procedures given in TM 10-3510-226-10 and monitor for leakage and normal