1.Roof water bucket flexible distribution;
2.Suspension pipe slope is not required, saving installation space;
3.Greatly reducing the number of risers;
4.Flexible conduit to facilitate construction deal;
5.Reduced pipe diameter of 1/2 to 2/3, to save material;
6.Fast drainage pipe with a self-cleaning function, not blocked;
7.Process is simple, fast construction;
8.Can save considerable renovation and construction costs.