Chapter 3 — Waterside Care and Requirements
3-18 Part No. 750-184
Wet storage is generally used for a boiler held in stand-by condition
or in cases where dry storage is not practical. The possibility of
freezing temperatures must be considered. Care must again be
taken to protect metal surfaces. Variables preclude definite
recommendations. However, it is suggested that the pressure vessel
be drained, thoroughly cleaned internally, and re-filled to
overflowing with treated water. If deaerated water is not available,
the unit should be fired to boil the water for a short period of time.
Additional chemicals may be suggested by your local Cleaver-
Brooks authorized representative to minimize corrosion. Internal
water pressure should be maintained at greater than atmospheric
pressure. Nitrogen is often used to pressurize the vessel. Fireside
surfaces must be thoroughly cleaned and refractory should be
wash-coated.
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