Water Filter or Purifier
Installing a whole house filter to purify the water from every source can be expensive, but will assuredly solve any problems relating to excess iron, manganese, or other minerals that can be present. Nowadays, chlorination is the usual means by which to purify water. However, potassium permanganate is a suitable substitute, as it oxidizes thoroughly without leaving a toxic byproduct . It is also used in conventional water treatment plants, often added to the raw water prior to filtration, according to the Environmental Protection Agency. As a substance, it is easy to transport, store, and supply, and produces little to no negative byproducts.
Elimination of "Rotten Egg" Smell
Due to its oxidizing properties, potassium permanganate can help combat the negative effects of decomposing organic materials, according to softwater.com. As water from underground deposits is drawn to the surface, hydrogen sulfide gas--both flammable and poisonous--can be released into the atmosphere. Potassium permanganate combats the organic material, thus destroying the smell it emits. This procedure is also used to treat waste water.
In some studies, potassium permanganate has been proven to inactivate certain bacteria and viruses, similar to its capacity to disinfect waterborne pathological organisms. A study on the EPA website outlines instances in which the compound has killed microorganisms such as Vibrio cholera and E. coli.
Cleansing Fish Ponds
Potassium permanganate, when added to fish ponds or pools, may interact with any organic matter, including algae and fish. However, its main use is to eliminate common fish pathogens such as gill parasites and bacterial infections. It won't greatly increase the amount of oxygen in the pond; it may actually decrease oxygen levels as it kills off oxygen-producing algae. Therefore, adding the proper dilution of potassium permanganate is critical. The amount needed depends upon the size of the pond and amount of water present.