The Coupling Gasket is situated in the back of the Perlick Faucet body at the point of connection between the faucet and the shank in a draft system. The Gasket forms a liquid tight seal between the two pieces of equipment.
If a leak occurs at the connection point between faucet and shank, the Coupling Gasket may be worn and in need of replacement.
To remedy the situation, first attempt to tighten the faucet to the shank with a Faucet Wrench. If the above procedure fails, remove the faucet from the shank and replace the Coupling Gasket and re-secure the faucet to the shank with the Faucet Wrench.
Shown as # 4 in the following diagram.