By maintaining your pool, spa or fountain the Bay-wise way, you can help protect San Francisco Bay. Certain pool chemicals, especially those containing copper, can kill fish if pool water is emptied into gutters and the stormdrain system. Copper is also not completely removed by wastewater treatment, so sewer disposal is not a perfect solution either.
The best way to prevent copper pollution is to avoid using chemicals that contain copper! If you need to empty your pool, spa or fountain, contact your local stormwater or wastewater agency for guidelines. In some cases, you may need to obtain a permit.