Collection Systems for Use in Offset Pit Latrines Having Pour Flush Latrine Pans, Collectors, Offset Pit Latrines and Related Methods

A collection system for use in an offset pit latrine comprising:

• (a) a pour-flush latrine pan mountable at a surface comprising a collection basin and a flapper, the collection basin having an upper bowl portion tapering to an outlet extending through a wall of the collection basin at a lower end of the collection basin, the flapper comprising a counterbalance device and a coverplate disposed on opposite sides of a pivot,
• the coverplate having a shape adapted to cover the outlet of the collection basin when the coverplate is engaged against the lower end of the collection basin, the flapper being pivotally mounted against the collection basin such that the coverplate engages against the lower end of the collection basin when a pivotal force attributable to the counterbalance device is greater than a pivotal force applied to the coverplate that engages the lower end of the collection basin;
• and
• (b) a collector for directing towards an offset leach pit a material discharged from a latrine pan having a flapper comprising a counterbalance device and a coverplate pivotally mounted against the latrine pan, the collector comprising a collector body that engages the latrine pan, defines a discharge opening, and secures an inclined surface sloping downwardly between an impact zone positioned beneath the outlet of the latrine pan and the discharge opening, the collector body securing the inclined surface at a position sufficiently distant from the underside of the latrine pan so that the inclined surface does not impede pivoting of the flapper,
• whereby material discharged from the outlet of the latrine pan contacts the inclined surface at the impact zone and slides downwardly from the impact zone to the discharge opening.