A method for operating a water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g) in function of an object type's detection, the recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g) comprising: an outlet configured to output water; a collecting arrangement arranged to collect water output by the outlet; and a discard path configured to discard water from the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g); a water quality sensor arrangement configured to collect water quality data of water collected by the collecting arrangement; wherein the method comprises: receiving (222, 342, 560) presence sensor data from a presence sensor arrangement (116a, 116b, 116c) of the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g); determining (228, 230, 562) whether the object type is human based on the presence sensor data and the water quality data; and if the object type is human, setting the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g) in a recirculation mode (238, 564), else setting the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g) in a discard mode; wherein the recirculation mode (238, 564) comprises: receiving water quality data from the water quality sensor arrangement of the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g); determining the water quality measure of the water collected by the collecting arrangement based on the water quality data; if the water quality measure is below a first water quality threshold, discarding the water collected by the collecting arrangement; and if the water quality measure is equal to or above the first water quality threshold, recirculating at least part of the water collected by the collecting arrangement, and wherein the discard mode comprises: discarding the water collected by the collecting arrangement. an outlet configured to output water; a collecting arrangement arranged to collect water output by the outlet; and a discard path configured to discard water from the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g); a water quality sensor arrangement configured to collect water quality data of water collected by the collecting arrangement; wherein the method comprises: receiving (222, 342, 560) presence sensor data from a presence sensor arrangement (116a, 116b, 116c) of the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g); determining (228, 230, 562) whether the object type is human based on the presence sensor data and the water quality data; and if the object type is human, setting the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g) in a recirculation mode (238, 564), else setting the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g) in a discard mode; wherein the recirculation mode (238, 564) comprises: receiving water quality data from the water quality sensor arrangement of the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g); determining the water quality measure of the water collected by the collecting arrangement based on the water quality data; if the water quality measure is below a first water quality threshold, discarding the water collected by the collecting arrangement; and if the water quality measure is equal to or above the first water quality threshold, recirculating at least part of the water collected by the collecting arrangement, and wherein the discard mode comprises: discarding the water collected by the collecting arrangement. receiving (222, 342, 560) presence sensor data from a presence sensor arrangement (116a, 116b, 116c) of the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g); determining (228, 230, 562) whether the object type is human based on the presence sensor data and the water quality data; and if the object type is human, setting the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g) in a recirculation mode (238, 564), else setting the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g) in a discard mode; wherein the recirculation mode (238, 564) comprises: receiving water quality data from the water quality sensor arrangement of the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g); determining the water quality measure of the water collected by the collecting arrangement based on the water quality data; if the water quality measure is below a first water quality threshold, discarding the water collected by the collecting arrangement; and if the water quality measure is equal to or above the first water quality threshold, recirculating at least part of the water collected by the collecting arrangement, and wherein the discard mode comprises: discarding the water collected by the collecting arrangement. receiving water quality data from the water quality sensor arrangement of the water recirculating device (100, 400a, 400b, 400c, 400d, 400e, 400f, 400g); determining the water quality measure of the water collected by the collecting arrangement based on the water quality data; if the water quality measure is below a first water quality threshold, discarding the water collected by the collecting arrangement; and if the water quality measure is equal to or above the first water quality threshold, recirculating at least part of the water collected by the collecting arrangement, and wherein the discard mode comprises: discarding the water collected by the collecting arrangement.