Many pool cleaning products contain chemicals that can be hazardous or even deadly if stored improperly. As the Environmental Protection Agency (EPA) points out, various pool chemicals “can potentially be highly reactive and capable of generating high temperatures, as well as releasing toxic vapors if improperly handled or stored.”
Avoid fumes, fires, chemical reactions, and other hazards by following the storage instructions on each cleaner carefully. The ideal storage space should be well ventilated, clearly organized, free of leaks or spills, and protected from excessive heat or sunlight.