As of other complains the supplied seal ring of poor quality. In a first attempt by the Distributed therefore has not only dropped but downright bubbled no matter how hard I had drawn him. I then get a friend of hemp, Fermitpaste and a reasonable seal and the screw for a guide by an expert at Youtube verhalft and then bolted to the new seal. So nothing drips and everything looks very solid. The two shut-off valves are also close and trustworthy. Therefore, I forgive a total of three stars and strongly recommend to change the seal and to work with hemp band or special sealing tape.