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The following types of traps are prohibited:
1. Traps that depend on moving parts to maintain the seal;
2. Bell traps;
3. Crown-vent traps;
4. Separate fixture traps that depend on interior partitions for the seal, except those traps constructed of an approved material that is resistant to corrosion and degradation;
5. “S” traps;
6. Drum traps;
7. Building (house) traps in sanitary sewers.