Hard water stains on your outdoor sofa can be unsightly and tough to remove, but with the right techniques, you can restore its appearance. Here are the most effective methods:

1. Vinegar Solution: Mix equal parts white vinegar and water in a spray bottle. Spray the stained areas and let it sit for 10-15 minutes. Scrub gently with a soft brush or cloth, then rinse with clean water.

2. Baking Soda Paste: Create a paste using baking soda and water. Apply it to the stains, let it dry, then scrub and rinse. This method works well for stubborn stains.

3. Commercial Cleaners: Use a specialized outdoor furniture cleaner designed for hard water stains. Follow the product instructions for best results.

4. Preventive Measures: Regularly wipe down your sofa with a damp cloth to prevent mineral buildup. Cover the sofa when not in use to protect it from water exposure.

By using these simple yet effective methods, your outdoor sofa will look clean and fresh again!