The longer you allow the solution to sit, the more effective it will be. Some homeowners have found that letting it sit for up to an hour yields even better results, especially for heavy algae growth.
7. Rinsing It All Away: When The Algae Practically Falls Off
After the waiting period, it’s time to rinse away the solution. Using a garden hose with a spray nozzle, simply rinse the siding starting from the top and working your way down. You’ll be amazed at how the algae practically falls off the siding.
The gentle pressure from the hose is usually sufficient to remove the loosened algae, leaving your siding looking clean and fresh. For particularly stubborn spots, a second application and rinse may be necessary, but in most cases, a single treatment will suffice.
8. Safety Rules: Protecting Plants, Pets, And Your Paint
While the cleaning cocktail is relatively mild, it’s
