How to plumb in a salon backwash?

To plumb in a salon backwash, begin by selecting an appropriate location that allows for easy access to water and drainage. Install hot and cold water supply lines, ensuring they are connected to the backwash unit's inlet valves. Then, connect the drainage hose to the backwash's drain outlet, directing it to the existing Plumbing drain. Finally, check for leaks and test the water flow to ensure proper operation.