Residents are forbidden to use water to wash down paths and pavements, or to use a hose without an automatic shut-offvalve.
禁止居民用水清洗道路和人行道,或使用没有自动断阀装置的水龙头。
2
Intercept the fluid medium upstream of the valve to be inspected with a shut-offvalve and ensure that the subject valve is not under pressure (vent downstream, if necessary).