As most people already know, sulfur into hydrogen sulfide gas and create a rotten egg smell in drinking water. Arsenic, on the other hand, has no scent and can go undetected even in high concentrations.
While hydrogen sulfide in water creates a giant nuisance with its stench, arsenic poses some real danger to humans and should not exist in drinking water. The USEPA set the maximum contaminant level for (inorganic) arsenic in drinking water at 10ppb, or 10 parts per billion.
Before you can effectively remove either of the compounds you must first learn how much of one or both contaminants you have. The test kits below will provide on-the-spot testing results for screening purposes only. As always, though, we suggest having your water professionally tested by a certified water analysis laboratory before making any final decisions regarding which treatment system to purchase or deciding whether or not you actualll need a water treatment system.