Your plumbing system is multifaceted. There is drinking water, heating water, waste removal and other sub-systems. They are all of equal importance and symbiotic in relationship, but it is dangerous for them to converge. We would not want your drinking water meeting your waste water before you are introduced. Changes in pressure can lead to harmful toxins and contaminated water. Cleveland Plumbing and Heating is the company to call in Hyde Park, NY for backflow testing, prevention and the installation of backflow prevention systems.