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Across 3. HOW LONG SHOULD A CUSTOMER KEEP A DISPOSAL NOTE 4. THIS STACK HAS VENTS COMING OFF EVERY APPLIANCE 5. WHAT REGULATION COVERS SANITATION 7. RADIUS OF BEND AT BOTTOM OF STACK 8. TRAP THAT REQUIRES NO WATER 9. WHERE WOULD YOU FIT A SHROUD 10. OUTLET SIZE ON A SINK WASTE DISPOSAL UNIT 12. YOU'LL FIND ONE OF THESE ON A STUB STACK 14. REQUIRED WHEN RUNNING SOIL STACKS THROUGH FLOORS 16. MOST COMMON SOIL STACK 19. MINIMUM TRAP SEAL ON A WHB 20. WHAT IS THE ELECTRICAL CONNECTION FOR A MACERATOR 21. BS NUMBER FOR SANITATION 24. SHOULD BE AT THE BOTTOM OF A STACK 25. BUILDING REGS DOCUMENT F 26. WHAT REGULATION COVERS DISABILITIES 27. AMOUNT OF WATER TO FEED 2 URINALS 28. HOW MANY EXTERNAL VENTS ARE NEEDED ON 20 STACKS IF USING AAV 29. WINDOW OPENING FREE AREA FOR WC 30. MUST BE AT LEAST 7 METRES FROM A HOUSE 31. MUST BE EMPTIED REGULARLY

Down 1. IF YOU HAVE A MACERATOR WHAT ELSE MUST YOU HAVE 2. THIS STACK HAS ANOTHER MAIN VENT CONNECTED TO IT 3. MINIMUM FALL ON MACERATOR PIPWORK 6. MAXIMUM HORIZONTAL RUN FROM A MACERATOR 11. WHAT CONSIDERATIONS MUST BE TAKEN WHEN FITTING SANITARY APPLIANCES 13. WHAT IS THE MAXIMUM LENGTH OF SOIL RUN FOR A WC 15. MEASUREMENT RAINFALL INTENSITY IS GENERALLY TAKEN AS 17. BS NUMBER FOR ELECTRICS 18. DRAINAGE THAT IS ABOVE HOUSE LEVEL REQUIRES ONE 22. HOW MANY VERTICAL RUNS ARE ALLOWED ON A MACERATOR 23. MAXIMUM AMOUNT OF WATER TO FEED 1 URINAL