Fill water via the enlarged inlet, hand-tighten the cap to ensure closure, open the air pump inlet, then foot on the air pump for pressure, and finally lightly press the nozzle can be water, and you are good to go. Grip nozzle design, large water area, easy to open and close. Foot-operated air pump, with a highly elastic large mesh sponge inside, can support itself to rebound.The barrel body is made of PVC sandwich mesh material, with good leak-proof sealing. Pack down this travel-friendly shower with its nozzle, hose, and foot pump well to the zippered storage bag when you are camping, hiking, backpacking, and trekking in the wild. Perfect for showering outdoor, rinsing off sands on feet, bathing muddy pets, or washing spotted cars as well.