Pentair Residential Systems catalogue 2023

84 CATALOGUE 2023 PENTAIR RESIDENTIAL SYSTEMS How contaminants get into our water Impurities by industry Chemicals dumped onto or pumped into the ground can easily get into our water supply. Those are for instance industrial waste sites, municipal landfills, ruptured underground gasoline storage tanks or agricultural pesticides. Impurities by animal waste Pathogens, disease-causing bacterias and viruses associatedwith animal waste, can makewater unsafe for human use. If those are found in thewater, shellfish bedsmay be closed to harvest, beaches closed to swimming and drinkingwater supplies require expensive filtration or disinfection. Impurities in the distribution system Lead and asbestos cement pipes, still prevalent inmunicipal water distribution systems, can allow harmful substances to leach intowater. Impurities in the home Water can become contaminated right at home. Some older homesmay still have lead pipes or plumbing systems that use lead-based solder to join copper pipes. Both can allow lead to leach into drinkingwater.