You can also do a DIY home repair for your kitchen faucet. A loose kitchen faucet can be frustrating to use and may result in plumbing damage if not handled properly. The first step is to identify the cause. If the mixer tap kitchen is loose due to a nut that is loose, the nut is likely to be loose on the underside of the mount. Loose nuts can cause the faucet to move around, causing water damage and leaks.