Potable Water Hoses/Risers.

TB-43-0153 Water Supply Afloat Manual
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*TB 43-0153

c. Open the shore potable water supply valve to flush the supply piping for 15-30 seconds to remove

debris/prevent discoloration.

d. Verify that the watercraft and shore facility risers and potable water hoses have been disinfected

and that the shore facility supply piping has been flushed. Connect the potable water hose to the shore

facility riser. The transfer of water from the shore facility to the watercraft may now be initiated.

e. If at any time during the transfer of water/connection procedure, the potable water hose becomes

contaminated, such as through contact with the harbor water, transfer operations shall be stopped and

the hoses disinfected.

9. Potable Water Hoses/Risers.

a. Hoses shall be labeled "POTABLE WATER ONLY" at 10- foot intervals. Potable water hoses shall

be used to transfer potable water only, and for no other purpose.

b. Hoses shall be kept in good condition at all times, examined routinely, and removed from service if

cracks develop in the lining.

c. Hoses shall be stored with the ends coupled or closed with screw-type caps, in padlocked, vermin-

proof lockers. Lockers shall be labeled "POTABLE WATER HOSE". Lockers shall be located out of

the weather, if practicable, and at least 18 inches off the deck. Printed instructions outlining step-by-

step procedures for the disinfection of potable water hoses shall be posted in a conspicuous location in

the hose storage area.

d. The end coupling of the hoses shall be color coded light blue.

e. Potable water risers shall be labeled "POTABLE WATER" and color coded light blue. All risers

shall be equipped with screw-type caps with keeper chains.

10. Storage Tanks. Although potable water tanks are constructed and situated to prevent content

contamination, they may be inner-bottom or skin tanks or they may have a common bulkhead with

ballast tanks, fuel tanks, or other storage spaces. Special attention must be given to monitoring and

maintaining the quality of potable water in these tanks because of susceptibility to contamination.

11. Potable Water Piping. Special consideration shall be given to potable water piping installed in

bilge areas, particularly piping on the suction side of potable water pumps. Because this piping is

subject to immersion in bilge water, any leakage will result in contamination. This piping shall be kept

in good, sound, working order. All potable water piping that is normally pressurized shall also be kept

in good working order because the pip ing may occasionally lose pressure, or be under no pressure,

which could allow contaminated water to enter the pipes.