The check valve and vacuum breaker are under the sink in the bathroom. Mine leaked water when I tried to flush. I have both the check valve and the breaker to replace them. I took a pic of the original in place. Pic disappeared off my phone. What I need to know is which one of the lines is input and what one is output. Info or a pic of the valve, showing the color of the pex lines, would be greatly appreciated. I’m hoping Beaver had a standard color that they used.
2003 PT.