Welbilt Frymaster FilterQuick 3FQG30U Installation, Operation And Maintenance Manual page 4

WARNING
NEVER drain boil out or cleaning solution into a shortening disposal unit (SDU), a built-in filtration unit, a portable
filter unit, or an OQS (Oil Quality Sensor). These units are not intended for this purpose, and will be damaged by the
solution and void the warranty.
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