To install the Phyn Smart Water Assistant you will need an adjustable wrench to unscrew your hot and cold water lines from the angle stops under your sink and to tighten the Phyn sensors in place. You will need a cup or bucket to catch the water that comes out of your water lines when they are emptied. We recommend that you also have a towel handy. Additionally if you choose to screw the mounts to your cabinet you will need a screwdriver and/or a drill to make pilot holes. Once you are finished with your installation we recommend that you leave a pan or dry towel under your water lines and check back a few times within the first 12 hours of installation to make sure that your connections are tight and that there are no leaks.