Hard hose traveling guns are characterized by the "hard hose" used on the traveler. This hose is wound around a hose drum or reel with the end of the hose attached to a wheeled gun cart. In operation the gun cart (with the hose attached) is pulled out some distance from the traveler. The pump is then started, which provides water to the "gun." The hose reel then begins to slowly "reel in" the gun cart as the sprinkler operates.