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In addition to the chemicals that are injected into wastewater, stagnant water in the system will result in a pH drop, triggering increased production of Hydrogen Sulfide (H2S) gas. When H2S combines with water vapor it forms Sulfuric Acid (H2SO4). The acid then corrodes the metals and the concrete that make up the infrastructure. When the tops of the sewer lines corrode, this is called "crowning" and costs billions of dollars to repair. With the introduction of the low-flow toilet, less water is flowing through the systems, adding to the increase in stagnation in many municipal systems and the increase in H2S production. It is a vicious cycle.
EM•1® contains natural antioxidants that remove and prevent rust and sludge build up thereby prolonging the useful life and reducing the cost of maintaining equipment. When EM•1® is introduced into the collection system, Hydrogen sulfide is not produced. This is done in two ways. First, the microbes in EM•1® release O2 into the system, increasing the pH in the wastewater, preventing the release of the gas. Second, the photosynthetic bacteria in EM•1® ingest the sulfur as a food and do not release it until they die. When hydrogen sulfide is not released in a moist environment, sulfuric acid cannot be produced, therefore preventing the corrosion from happening in the first place.