Accidents can of course happen, but where possible, Dometic takes control with many preventative measures. The Dometic DTD01, for example, is an easy to use and safe discharge control for the holding tank. It makes sure that accidental discharge in restricted waters can't happen and then allows manual discharge when in unrestricted waters. In addition to this attentive precaution, it simplifies plumbing requirements by eliminating the need for Y-valves. The DTD01 is available as 12 V or 24 V model.