Generally, safes are neither waterproof nor burglarproof. A more realistic definition is that they are "resistant" to water and burglary; meaning they will withstand heat, tool attacks and severe conditions over a specific period of time. Safes are classified as to the level of "resistance" they are designed to withstand. Unless you have specifically selected a safe that is designed to be a waterproof safe, to ensure your contents are protected from water (especially for floor safes), we suggest you place the contents in a waterproof container or zip lock bag. One safe manufacturer, Honeywell, has a tested "waterproof" and "fireproof" safe with an Underwriters Lab fire rating. It is important to note that this is NOT a burglar and fire safe but a fireproof/waterproof safe.
For more information about the differences between safe types, please see "The Differernt Types of Safes" page.
Yes, the internal mechanisms of a lock are precisely manufactured and over a period of time and use, the locks, bolts and hinges will need cleaning, lubrication and adjustment. We recommend that you contact a local "locksmith" or "safe technician" in your area every 2-3 years to have your lock serviced. You can find them in the Yellow Pages under Locksmiths or Safe Technicians.