City of Waukee recently issued the following announcement on August 31.
This is it - the end of the summer and time to empty the pool until next year. Chlorine and other chemicals used to keep your pool or spa clean cause BIG problems for fish and other aquatic life. Follow these steps to avoid compromising water downstream.
- Allow the pool or spa to sit for at least 7 days without adding chlorine or other chemicals; the chlorine content should be 0.1 milligrams per liter.
- Ensure the pH of the pool / spa water is between 7 and 8.
- Drain water through at least 15 feet of a grassy landscape first (i.e. not directly onto concrete) to allow remaining chemicals to dissipate before reaching the storm drain.
- Keep the flow of water low (aim for 700 gallons per hour = 12 gallons per minute or so) in order to prevent erosion and having to fix the landscaped area later.
Original source can be found here.
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