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HomeMy WebLinkAboutGN18 grease interceptorSPECIAL PRECAUTIONS For Schier Grease Interceptor Installations - Failure to follow this guidance voids your warranty page 3 of 4 DO NOT COMPACT BACKFILL MECHANICALLY Compact by hand only Corrugated Riser Pipe Requirements Riser adapter model CA2 must be used when installing interceptors using 24" diameter corrugated pipe as a riser. This will adequately embed the cover adapter in the concrete slab, preventing cover/cover adapture failure under traffic rated loads. Installations with Risers Max Water Level Risers are not designed to retain water 3 FCR2 Risers Max 94"94"94" 6 - 94"6 - 94"6 - 94" CA2 Indirect Connections If your dishwashing sink(s) discharges into a floor drain/sink (drain), you must regulate the flow into the drain to avoid an overflow of water onto the kitchen floor. This can be done by installing a valve or flow restriction cap on the sink piping that discharges into the drain. See drawing for guidance. For detailed guidance on indirect connections, go to: webtools.schierproducts.com/Technical_Data/Indirect_Connections.pdf Fernco or similar rubber flow restriction end cap High Temperature Kitchen Water cold water supply line high temperature effluent ( > 150º F) approved backflow prevention assembly DTV (drain water tempering valve) If water is entering the interceptor at excessive temperature (over 150º F), a drain water tempering valve (DTV) and approved backflow prevention assembly must be installed. Most state and local plumbing codes prohibit water above 150º F being discharged into the sanitary sewer. Water above 150º F will weaken or deform PVC Schedule 40 pipe, poly drainage fixtures like interceptors and erode the coating of cast iron (leading to eventual failure). indirectly connecteddirectly connected 6455 Woodland Drive | Shawnee, KS 66218 | 913-951-3300 | schierproducts.com © Copyright 2020 Schier Products Company MODEL NUMBER: GB-1000 DESCRIPTION: 100 GPM Polyethylene Grease Interceptor – 1,010 gallon capacity PART #: 4080-002-01 DWG BY: B. Karrer DATE: 12/2/2020 REV: ECO: