14 gal/s = _qt/minutes

We know that 1 gallon = 4 quarts

therefore, 14 gallons=56 quarts

so

14gallons/s=56 qt/s

if we would need to find just gallons/second in quarts / second the answer will be simple, but we need to find the answer in qt/min

is there are 56 qt per second, it means that it will be

56*60 in 1 minute

56*60=3360

final answer

14 gallons/s=3360 qt/min