This document discusses the use of hypochlorite (hypo) or bleach as a disinfectant for water and other purposes. It provides guidelines for using hypo to sanitize food contact surfaces, disinfect wells, clean homes, and process food. The document includes tables with recommended amounts of hypo (typically 5.25% household bleach) per volume of water to achieve different chlorine concentrations for various applications. It also provides information on other forms of hypo like HTH calcium hypochlorite granules.