Rusty metal bucket, blue plastic bucket, and two jar-shaped water containers of colored plastic.


The guidelines are nonspecific and advisory, allowing for interpretation and alternative solutions. They are appropriate for a range of interests and organizations and include:

  • Technical recommendations (flow rates, residual disinfectant concentration).
  • Product design guidance (usability, materials, aesthetics, and configuration).
  • Strategic recommendations (differences in consumer preferences by segment or geography, channel-dependent design, cost/feature trade-offs).
  • Links to additional sources where available.