The drain at the bottom of my ice box has been leaking ... Water getting out around seal that connects drain hose into cooler....the drain hose connects to a black elbow that has threads on cooler side..... At bottom of cooler there is a white disc that threads onto this black elbow....I need to find a new elbow and "locking disc /nut" plus any gasket that needs to placed under locking nut to seal cooler and prevent leaking.... Can anyone point me in the right direction? Thanks for the help