In order to ensure that the water samples in the device are evenly mixed and all water flows through the tank at least once, each flow rate is maintained for 2 h.
To ensure that the water samples in the unit are mixed evenly and that all water flows through the sink at least once, the flow rate is maintained at 2 h.
In order to ensure that the water samples in the device are evenly mixed and all water flows through the water tank at least once, each flow rate is maintained for 2 h.