A club member and friend bought this off that there internet web auction site brand new for his HW100. On the first fill, after fitting his spare ends, at 150 BAR it split from top to bottom. He was lucky not to lose his hand. After he had come back from the toilet he rang the supplier. From what I gather they tried to tell him, an ex engineer, that he had over filled it. He got a refund. Motto: Buyer beware. Cheap isn't always best.