So me and my friend were really bored one day so we decided to make a rail and do a summer set up! i had some old rugs and carpet and cut them up into about thirty feet of run up and soaked it with water and detergent, and it actually worked! like just as good as turf! it was slower to get going but it went about the same speed, so for anyone with extra carpet just use that instead of going out and buying turf!