How to Build a Tunnel-of-Fun Water Sprinkler

On a 60-inch pipe, use the printed markings and a straightedge to draw a pencil line down the length of the pipe. Starting and ending 2 inches from each end, drill 1/16-inch holes along the line about every inch. Repeat for the other 60 inches of pipe. Check that the PVC fittings slip smoothly onto the pipe ends.

Cut one of the 30-inch pipes in half. Use PVC cement according to the manufacturer's instructions to join a 3/4-inch tee to the two pipes; let dry. Screw a hose adapter onto the threaded opening of the tee and tighten. Then measure and cut the assembly to 30 inches long.

Rinse the cutting and drilling debris from all the pipes and let dry before putting the pieces together. Assemble the two V-shaped ends using side outlet elbows and the 30-inch pipes. Then add elbows to the ends of the pipes. Attach the 57-inch pipe without sprinkler holes to the side outlet elbows using a male adapter at each end; attach the 60-inch pipes with holes to the elbows. Rotate the pipes so the water will spray inward as the sprinkler rests on the ground.

Attach a garden hose to the adapter. Lay a toy water slide or plastic tarp beneath the sprinkler. You can also stand the sprinkler on end so kids can run through it. Turn on the water and let the fun begin.