One Way Valve for pH Boss, Oxi Boss and Bio Doser.

ONE-WAY VALVE INSTALLATION

1. Remove the nut from the one way valve fitting on the Tee piece.

2. Slip the Nut over the hose.

3. Push the hose firmly onto the tube fitting.

4. Tighten the nut over the hose. Tighten firmly with fingers. DO NOT USE A TOOL.