ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
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TACTICAL WATER PURIFICATION SYSTEM (TWPS)
OPERATOR MAINTENANCE PROCEDURES
REVERSE OSMOSIS SYSTEM
5. Clean and inspect the inside of the vessel as follows:
a. Flush out the vessel with clean water to remove any debris.
b. Inspect the inside surface of the vessel for corrosion, deposits or other foreign matter. If
any are found, clean the surface as follows:
1) Using a scouring pad and a mild soap solution, clean each end of the vessel
liner surface up to eight in. from each end of the vessel.
2) Rinse away all loosened deposits from the inside of the vessel.
WARNING
Do not attempt to repair a fiberglass vessel. If a vessel has damage or scratches
deeper than the paint, the vessel should be replaced. Failure to observe this
warning can result in injury or death or damage to equipment from catastrophic
failure of the vessel under high pressure during operation.
c.
Examine the inside of the vessel for scratches or imperfections that may affect the
sealing ability of the end cap or element seals. If severe scratches or damage are found,
Notify Direct Support to replace the vessel as described in WP 0070, RO System Direct
Support Maintenance Procedures under the heading RO Vessel Replacement.
CAUTION
Do not attempt to repair a damaged vessel.
6. Install the new elements as follows (see Figure 7):
a. Lubricate the inside of the vessel at the ends with a 50/50 glycerin/water mixture to ease
the insertion of the elements and to reduce the chance of scratching the vessel bore.
The mixture can be applied using a swab soaked in the mixture.
CAUTION
Be sure to install the thrust ring in the downstream end of the vessel. Failure to
observe this caution can result in serious damage.
b. Insert a clean thrust ring into the downstream end of the vessel. The thrust ring requires
no orientation; simply push it into the downstream end of the vessel.
c. Insert the end cap assembly, with the first element adapter, into the downstream end of
the vessel as follows:
1) Align the orientation mark that you put on the end cap assembly during
removal with the orientation mark that you put on the vessel.
CAUTION
Do not rotate the end cap assembly after inserting it into the vessel. Failure to
observe this caution may cause the end cap seal to bind or become detached.
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