Abstract: The present invention describes a method for regulation of a hybrid device allowing purification and either recycling or separation of water, said method comprising measuring a water quality parameter in water in the hybrid device in a measuring point; deciding the limit value of the water quality parameter based on measurement of the water quality parameter, said limit value being a reference for a limit value for clean water; and if the water quality parameter in the measuring point is outside of the limit value of the water quality parameter then separating the water, and otherwise recycling the water in the hybrid device.

Abstract: The present invention describes a filter fastening system 1 comprising a filter socket 2 and a filter locking unit 3, wherein the filter socket 2 has a first end 4 being a top end and a second end 5 being a bottom end and a longitudinal body 6, wherein the filter locking unit 3 comprises a locking arm 7 with a connection end 8 and a locking end 9, a stopper 10 and a connection 11 where the connection end 8 of the locking arm is fixated with a joint 12 so that the locking arm 7 is pivotably arranged in the filter fastening system 1 so that the filter socket 2 may be fastened by pivoting the locking arm 7 until the bottom end 5 of the filter socket 2 is tightened against the stopper 10 and the top end 4 hence is tightened and sealed against a water piping connection for the filter socket (2).

Abstract: The present invention describes a hybrid device (1) for a recirculation shower, allowing purification and either recycling of water or discarding of water, wherein said hybrid device (1) comprises a recirculation loop (2), a filter system (4) with a nano-filter (5) such as for instance an electropositive nano-ceramic filter, e.g. a nano alumina (fiber) filter, at least one filter quality sensor (3), at least one pre-filter (6), and wherein the hybrid device (1) is arranged to redirect the water from recirculation to drainage when the at least one filter quality sensor (3) indicates the need thereof.