Usage of PVC Water Stop: Copper-Metal Water Stops are for use in concrete joints subjected to hydrostatic pressures. After being embedded in concrete, PVC Water Stops fill up the joints to form a continuous watertight diaphragm that prevents the passage of fluid. Specifications of PVC Water Stop: The PVC water stop must be designed and installed properly to accommodate joint expansions, contraction and lateral & transverse movements. In addition to these considerations the PVC water stop must be compatible with the concrete system and the liquids and chemicals to be contained or controlled. Maintains its position of industry leadership by responding to the specific needs of our customer. How to Install a PVC Water Stop in a Concrete Wall: A PVC Water Stop is designed to do just that, stop water from penetrating your concrete wall. Placed in the center of the wall where two separate sections will eventually join, the water stop forms a moisture barrier at the joints. Trying to figure out how to get the water stop to stay in place on a vertical wall can be tricky. You need to make sure you have the adhesive recommended by the manufacturer of your water stop and follow these steps to install it correctly.