Things You'll Need
Instructions
Find a hill that is perfect for a homemade water slide. Clear away any sticks, stones or other debris from the entire area you want to use for your slide, as these could potentially injure anybody using the water slide.
Measure the cleared area for the water slide and cut your tarp to your desired measurements. You may need more than one tarp if the area is large.
Lay your tarp on the area that you cleared. Keep the tarp in place using stakes. Place a stake every 3 to 5 feet to make sure the slide is secure.
Cover the homemade water slide with dish soap or liquid bubble bath. Adding soap to the slide will increase your speed. Reapply the dish soap or bubble bath as needed.
Place a sprinkler or hose at the top of the homemade water slide. Douse the slide with water and make sure it is completely wet. Keep the water running as long as you are using the water slide.