I am using old waterhose on my structures now. Mine are about 5 ft. tall. Don't be too concerned with the droop. Cut a little shorter pieces. Also the water keeps it from drooping as much as might think. I have photos of mine if you go to my posts. In my opinion they are working great. Good luck. We just got 2 inches of rain here in deep east Texas and it is still pouring!

Dear Alcohol, We had a deal where you would make me funnier, smarter, and a better dancer... I saw the video... We need to talk.