How to Install an ADA-Compliant Under-Sink Plumbing Shield

First, ensure your work area is safe and clean. Shut off the hot and cold water supply by turning the handles on the angle stop valves clockwise until they stop. If the valves are stiff or old, turn them gently to avoid breakage. Clear out any items stored under the sink to create ample space to work. Using cleaning rags and a degreaser or all-purpose cleaner, thoroughly wipe down the P-trap, drain tailpiece, and both hot and cold water supply lines and valves. The surfaces must be free of dirt, grime, and moisture for the shields to fit properly and look clean.

Take the large, flat vinyl piece intended for the P-trap. Using a tape measure, measure the length of the P-trap assembly from the wall connection (escutcheon) to the connection at the vertical drain tailpiece from the sink. Add about one inch to this measurement to ensure a complete overlap. Mark this length on the vinyl shield. Place the shield on a cut-safe surface. Using a straight edge and a sharp utility knife, carefully cut the shield to the marked length. Next, measure the circumference of the pipe and trim the width of the shield if necessary, ensuring it can wrap around the pipe and the hook-and-loop fasteners can engage securely.

Take the custom-cut P-trap cover and wrap it snugly around the drain pipe assembly. Start at one end and work your way along the curve of the trap. The material is designed to be flexible. Overlap the edges and align the hook-and-loop fasteners (or other provided fastening system, like zip ties). Press firmly along the entire length of the seam to ensure a secure and continuous closure. Make sure there are no gaps and that the entire trap, including the curved sections and nuts, is fully insulated.

Next, address the water supply lines and valves. The kit typically includes two valve covers and two lengths of tubing for the supply lines. First, fit the molded valve cover over one of the angle stops. It should be a snug fit. Then, use the tape measure to determine the length of the flexible supply line from the top of the valve cover to the connection point at the faucet's underside. Cut a piece of the vinyl supply line cover to this length using the utility knife. Repeat this measuring and cutting process for the second supply line and valve.

Slide the pre-molded valve cover over the angle stop handle and body. Ensure it fits securely and covers all sharp edges. Next, take the corresponding cut piece of supply line tubing. These pieces are usually pre-slit. Open the slit and wrap the cover around the flexible water supply line, starting from the top of the valve cover and working your way up to the faucet connection. Press the seam together to close it. Repeat the entire process for the second valve and supply line. Ensure both covers are secure and conceal the plumbing completely.

Once all components are installed, perform a final inspection. Check that all covers are securely fastened and that there are no exposed areas of pipe, sharp edges, or connection nuts. The goal is complete protection. Once you are satisfied with the installation, slowly turn the angle stop valve handles counter-clockwise to restore the water supply. Open the faucet and check for any leaks at the valve and supply line connections. If everything is dry and secure, the installation is complete.