Algae stains on a glass-top outdoor table can be unsightly and difficult to remove if not addressed properly. Fortunately, there are several effective methods to restore your table's shine.

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

2. Baking Soda Paste: Create a paste using baking soda and water. Apply it to the algae stains and let it sit for 20 minutes. Scrub with a non-abrasive pad and rinse thoroughly.

3. Bleach Solution (for tough stains): For stubborn algae, mix 1 part bleach with 4 parts water. Apply carefully, avoiding prolonged contact, and rinse immediately after scrubbing.

4. Preventive Measures: To avoid future algae growth, keep your table dry when not in use and clean it regularly. Consider using a table cover during rainy seasons.

By following these steps, your glass-top outdoor table will stay clean and algae-free all year round.