VEVOR FF-Q901 Manual Del Usuario página 22

diameter is abraded,this wall becomes thinner and thinner.One way to
inspect the hose and other parts affected by the blasting is to put on your
protective clothing. Then pressurize the system and close the nozzle shut
off the valve(31).Listen for air leaks,fix any leaks before operating.You can
also spot places in the hose where the wall is getting very thin. These show
up as blisters in the hose;if you find such a blister,get a new hose
immediately. If that blister breaks, the abrasive will come out of the side of
the hose.
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