Our sink did not want to close really simple, the screw at the drain was every now and then wet. In the pictures you can see the calcium deposits. I did everything beautifully clean and then the tape firmly wrapped drum. For this you pull the white stripes and wrapped from the site to be sealed, the tape bonded now itself. This repair has approximately 1/3 of the role used. For small repairs, it is so well suited. Since this is just about the sewer pipe, no pressure is on it. Whether you get water pipes permanently tight I can not say. Otherwise, a quick and clean solution.