The hybrid tank is used when the intake length or height are so big that the RAINMASTER Favorit-SC can no longer draw directly from the tank. A separate charging pump (submersible motor pump with dry run protection) then pumps the process water from the cistern in the so-called hybrid tank. The RAINMASTER Favorit-SC then takes the process water from this via a central intake connection. The charging pump is controlled via a floating switch integrated in the hybrid tank. The floating switch of RMF-SC is installed in the hybrid storage for changing over to drinking water. In case of duplex or triplex design the floating switch is connected parallel to all devices. In the hybrid reservoir, the charging pump connection, the intake and the floating switch for the charging pump are pre-mounted. In addition, an emergency overflow DN100 and the cable bushing for the second floating switch (switching to drinking water) are integrated.