| 11. | A fire breaks out; a septic tank erupts; the cat vamooses.
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| 12. | Septic tanks were, and are still, used in some outlying areas.
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| 13. | Leaking septic tanks sometimes surged into pipes that carried drinking water.
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| 14. | This means villages have to rely on their own septic tank.
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| 15. | They hide the cash in the septic tank at the park.
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| 16. | The standard system is a tiled leach field combined with a septic tank.
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| 17. | Q : Is there a recommended preventive maintenance for septic tanks?
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| 18. | House lots generally had to be large to accommodate septic tanks.
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| 19. | Septic tanks have to be regularly desludged to ensure that they operate efficiently.
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| 20. | Someday septic tanks will allow toilets to replace the ubiquitous outhouse.
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