Problem: The owner of a Menasha, Wisconsin, restaurant saw his system backing up into the three-compartment sink every five weeks. The drainline would plug up and the restaurant would close early to clean up the foul smelling mess. This resulted in a loss of business and compromised sanitary conditions in the restaurant.

Solution: Speedy Clean Drain and Sewer completed a thorough cleaning of the 50-gallon indoor grease trap. They installed one Trap-Cleer dosing pump injection system from Lenzyme/Trap-Cleer into the mainline located under the three-compartment sink feeding into the grease trap. Liquid Trap-Cleer was dosed in at 2 ounces per evening. It is designed to keep the system flowing properly and consume much of the grease, extending the time between clean-outs and servicing.

Result: Several months later the system continued to operate normally. Only a small amount of grease built up in the trap. The restaurant hasn’t shut down and the odors disappeared. The trap required pumping after eight months of operation. Based on a recommendation to clean the system when the grease level reaches one-third capacity, the restaurant scheduled cleanings on a four-month interval. 800/223-3083; www.lenzyme.com.