Unfiltered drinking water often has a sulfuric smell, similar to rotting eggs. The cause for this is normally due to having "hard water" or too many mineral compounds in your system. Princeton Plumbing Pros offers solution for your drinking water problem. That is, we offer a state-of-the-art water filtration system in Princeton. Not only does this system get rid of gross smells in your water but it also removes harmful toxins and mineral deposits.