An educational class was held on Thursday at the health department to teach local water departments how to properly test a special water safety device.
Back flow is the reversal of water flow in piping and without the installation of prevention devices, dangerous chemicals and substances could potentially get into the city's water supply. Experts use a chemical plant as an example.
"If you have like a chemical plant or something and they had something happening in their building, it could get back into the city water and contaminate it and the city of Zanesville has a back flow program and we are implementing the program for the city, " said Ronald Branson, Plumbing Inspector.
Currently the city is putting back flow prevention devices on local buildings and all new homes. As a part of the training attendees had the chance to practice checking the devices for various faults.
"Just to make sure that the springs and things hold on the back flow and that it's working properly, it's a yearly test. It has to be performed annually," said Branson.
This is the 3rd year that class was held at the health department. Branson says eventually the city will require all residents to have a back flow device installed, but they have yet to determined.