-Higher mineral count hard water sometimes causes lime and mineral deposits on faucets and drains. To remove stains, try a mild abrasive or window cleaner — avoid scrubbing with coarse heavy-duty sponges
-For really stubborn deposits, place a cloth soaked in white vinegar over the deposits for several hours. Vinegar, which is a weak acid, can dissolve many of these deposits. After removing the cloth, a mild cleaner to wipe the faucet clean should finish the job.
-Faucets should be inspected annually.
-things to look for are green or white stains.
-water marks on cabinets.
-Faucets should be inspected by a trained professional. Most of the time people don’t replace parts in their faucets till after they leak. This can happen at an inopportune time. A leaking faucet can also cost you hundreds of dollars on your water bill. Seats washers and cartridges should be replaced every 5 years. Avoiding these replacements can mean replacing your faucet when it does leak.
-Aerators for your sinks should be replaced annually.