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Across 1. water produced from an oversupply of rain 3. put power back into a system 6. not held back by anything 9. straight away 12. at a distance from others 15. surely 18. interrupting the normal flow 19. liquid we must have for life 20. network for disposing of liquid waste 22. how electricity gets from place to place 27. extra pressure 28. problem or concern 29. putting money or resources into something 31. time when a service is not working 34. possible 39. liquid waste 40. native animals, birds or reptiles 41. structures designed to carry water away 42. very grave or disturbing 43. conduit for sewerage 44. will cause death 45. very sharp or fierce

Down 2. person who works on electrical systems 4. source of energy from moving electrons 5. rules and methods to ensure correct behaviour 7. very bad 8. part of a drain designed to trap solid waste 10. improper functioning of something 11. machines that make electricity 13. a connected group with many different pathways 14. machines and devices 16. in excess of full capacity 17. not pleasant 21. a release from normal 23. a logical organisation to produce something 24. the operation of a power safety device 25. person purchasing a service or goods 26. alone 30. a fuel used in barbeques 32. let go or release 33. systems organised to provide things for the public 35. outside the law 36. rubbish or broken up pieces 37. most important conduits for services 38. return to original condition