This set is really good. And when it's time installed, then works irrigation (with me along with a Bewässerunscomputer) also very good. But the scharz hoses're really very hard and wiederspenstig. It takes a lot of patience until you having at the right positions and then lie to stay that way. (Due to the rigid want always in roll form "back") Softer material would have been better here. Otherwise, irrigation works, however. (My balcony has survived the holidays!)