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A sink-toilet combination unit is sometimes used by prisons and militaries.[1][2] Such units typically have no exposed pipes by which someone could hang himself. They are sometimes made of stainless steel for added durability. Sink-toilets are used at the Guantanamo Bay detention camp.[3] Sink-toilets are also used in some homes as an environmentally friendly, water-saving option that, at the user's option, reuses waste water from the sink in the discharge of the cistern. Some sink toilets employ a filtration system to remove particles, debris, bacteria, and odors before the water is stored for flushing.


  1. ^ Toch, Hans (2008), "Essay: Punitiveness as "Behavior Management"", Criminal Justice and Behavior, Criminal Justice and Behavior, 35 (3): 388–397, doi:10.1177/0093854807309427 
  2. ^ Stephen A. Kurtz (2003), Analysis Behind Bars, Free Associations 
  3. ^ J Daskal (2008), Locked up alone: detention conditions and mental health at Guantanamo