The present disclosure relates to a closed inclination change system (32) for a floating unit (10). The inclination change system comprises a plurality of inclination change assemblies (34, 36, 38, 40) and each one of the inclination change assemblies (34, 36, 38, 40) is adapted to be in fluid communication with each one of the other inclination change assemblies (34, 36, 38, 40).Each one of the inclination change assemblies (34, 36, 38, 40) comprises a tank assembly (44) comprising a first tank (46), the tank assembly (44) comprising a tank assembly top portion (48).Moreover, each one of the inclination change assemblies (34, 36, 38, 40) further comprises: a pump assembly (50) arranged to pump the fluid from the tank assembly (44), and an inlet conduit assembly (52) adapted to guide the fluid into the tank assembly (44) from another inclination change assembly (34, 36, 38, 40), the inlet conduit assembly (52) having a conduit top portion (54) that is located above the tank assembly top portion (48).