Protection against frost – Hale SMR-U User Manual

Page 7

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PROTECTION AGAINST FROST

As a precautionary measure, when frost is anticipated, drain all water from the pump
and its ancillaries.

Removing the drain plug from the base of the volute drains the pump. If the primer
exhaust is piped away to above the primer outlets, these must be provided with drain
valves.

If the water ring primer is fitted, removing the drain plug at the base of the water trap
housing drains it.

IMPORTANT:

It is essential to carry out the pump tests detailed in Section 13
whenever any part of the pump or priming system is dismantled.
This will ensure that reassembly has been carried out correctly
and that there are no leaks.