(1) Where more than one hydrant is required to
provide the number of jest required by regulation
37(1), a fire main shall be provided.
(2) Materials readily rendered ineffective by
heat shall not be used for fire mains, unless adequately protected.
(3) Where fire pump delivery pressure can exceed
the designed working pressure of fire mains, relief valves shall be
fitted.
(4) Fire mains shall have no connection other
than those required for fire fighting, except for the purpose of washing
the deck and anchor chains and operation of bilge ejectors, subject
to the efficiency of the fire-fighting system being maintained.
(5) Where fire mains are not self-draining, suitable
drain cocks shall be fitted where frost damage may be expected.footnote