Installing a whole house water filter is not as difficult as one might think. The most important thing to do before starting the installation process is to shut off the main water supply to your home. Once the water supply has been shut off, you can begin installing the filter according to the manufacturer's instructions. It is important to follow these instructions carefully in order to avoid any damage to your home's plumbing system. In most cases, the whole house water filter will be installed near the main water line coming into your home. After the filter has been properly installed, you can then turn on the main water supply and enjoy clean, filtered water throughout your entire home!