The pipes work well (we did a test but a priori, no worries), but I regret that there is any record to explain the operation and implementation of joint / tips. When one is not an expert in this field, it is not necessarily obvious to connect both hoses. In addition, it was necessary to more seals (3) on the tap it is not leaking, so I thought this is easily granted all taps. Otherwise, it's very convenient to be able to choose between 15 or 30m, guns seem to work well and while the pipe is very wet after use, there is no leakage. So I am happy with my purchase, although some points are to improve.