To fix a loose traditional kitchen tap, start by identifying the source of the problem. If it is the handle, remove the decorative cap, which may be a screw. Depending on the type of faucet, you may need a knife or a flathead screwdriver to remove the cap. Then, use a Phillips or hex head wrench to tighten the screw. Tighten the screw slowly, taking care not to over tighten it.