Patent ID: 11912212
Assignee: THETFORD BV
Field: Transport (Mechanical engineering)
Classification: CPC B  C  E | IPC B  C  E

Claim 0:
1. An additive dosing system for a wastewater management system of a vehicle including a black water holding tank, a grey water holding tank and a toilet, the additive dosing system comprising:
a controller;
a level sensor for sensing a predetermined volume level of grey water in the grey water holding tank;
a grey water additive dispenser in fluid communication with the grey water holding tank;
a black water additive dispenser in fluid communication with the toilet or the black water holding tank;
a flush water additive dispenser in fluid communication with the toilet; and
a pump for each additive dispenser, each pump controlled by the controller to dispense an additive from each additive dispenser to a corresponding one of the holding tanks, or the toilet,
wherein the dosing system allows three distinct additives to be introduced into the wastewater management system as water progresses through the wastewater management system from the grey water holding tank to the toilet and then to the black water holding tank,

wherein the controller is operative to automatically dose the grey water holding tank with a grey water additive in response to detection of the predetermined volume level of grey water in the grey water holding tank by the level sensor.