Why, then, do these streams of water sometimes shoot from a tugboat when there's no fire nearby, such as when tugging a larger ship? The answer has more to do with tradition. Tugboats don't spray ...

Tarrago’s fluorocarbon polymer material “puts on a coating, sealing the pores so water won’t seep in,” he says. One thing to note: The Tarrago spray is not recommended for nylon ...