Installation For Models: 679-1738, 679-1739 & 679-1740 Soap Dispenser INSTALLATION: 1. From above the sink, insert the base assembly (1) through the rubber gasket (2) and the sink hole opening. 2. From underneath the sink, secure the base assembly (1) to the sink using the plastic wing nut (3). Using the soap dispenser with the bottle (included) 1. From underneath the sink, screw the bottle (5) into the base assembly (1). 2. Fill the bottle (5) by pouring soap through the base assembly (1). 3.