If you depend on the local rainfall to provide your water supply, then you may like to know just exactly how much water finds its way into your tank on each passing shower. RainMan by BB is a simple program which calculates the catchment area of your roof, and that of your storage tank. It then converts millimetres of rainfall into tank level. This information is essential for good water management. This program is a FREE full working version. There are NO registry changes or secret files made. FileMap by BB contains no Spyware or AdWare, and is totally non-intrusive. This program is copyright of Bernie Madigan, Sydney Australia, but can be freely distributed, published on any media or uploaded to any web site without seeking permission, provided no files are altered or deleted.