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Flex Water hose supply line specifications for fire hose cabinet

Flex Water hose supply line specifications for fire hose cabinet

Flex Water hose supply line specifications for fire hose cabinet

(OP)
I need a specification for a flexible water hose supply line for a fire hose cabinet on the end of a floating dock.  The problem we have is the flex stainless steel 4" diameter hose is developing pin size holes (after only a few months in service).  I am sure electrolysis’ and galvanic action is the cause.  I need a hose that can handle a pressure to make the fire department happy.  My facilities manager suggests a marine grade 1/8” thick aircraft fuel type of hose line that he swears by.  Any leads or suggestions would be greatly appreciated.

KKS

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