Nick, I assume you mean heavy metals, although heavy meals can cause havoc with any sewage system. Generally bacteria such as Effective Microorganisms can handle and clean most pollutants and if not nano filtration can. Happy heavy meals! Paul
**************Ideas to please picky eaters. Watch video on AOL Living. (http://living.aol.com/video/how-to-please-your-picky-eater/rachel-campos-duffy/ 2050827?NCID=aolcmp00300000002598)
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