How can I effectively clean and maintain my shower head washer to ensure optimal performance and water flow?

To effectively clean and maintain your shower head washer for optimal performance and water flow, regularly remove the shower head and soak it in a mixture of vinegar and water to remove mineral deposits. Use a small brush to scrub any remaining debris. Replace the washer if it appears worn or damaged. Reattach the shower head and run water through it to ensure proper flow.