The Comfort-Aire PS-121D Portable Air Conditioner does have a provision for connecting a water hose, but it’s primarily for draining purposes rather than regular operation. Here’s how you can use it: Drainage: Continuous Drainage: If you plan to use the unit continuously, you can attach a standard garden hose to the drain outlet to allow the water to drain automatically. This is especially useful in humid conditions where the unit may collect a lot of condensation. Manual Drainage: If you prefer, you can manually drain the water by removing the drain plug and allowing the water to flow out. Installation: Locate the drain outlet at the back of the unit. Attach a standard garden hose to the drain outlet. Ensure the hose is directed to a suitable drainage area. This setup helps prevent the water tank from filling up too quickly and ensures continuous operation without interruptions.