Stay Hydrated

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Across
  1. 1. Remove impurities from drinking water
  2. 4. Drinking water additive
  3. 7. Poor quality drinking water in river (5)
  4. 9. FOUNTAIN Fountain that provides drinking water
  5. 12. water (ordinary drinking water)
  6. 15. Poison some drinking water (8)
  7. 16. PLACE Where drinking water for people or animals is found (8,5)
  8. 18. Drinking water additive
  9. 20. Adds an element to drinking water
  10. 21. Exist, drinking water, finally alive
  11. 22. Cask of drinking water, on board ship
  12. 23. Remus's brother drinking water of forgetfulness, he rabbits on! (9)
Down
  1. 2. Coliform-group bacterium used as an indicator of contamination in drinking water (1,4)
  2. 3. Clean drinking water helps prevent it
  3. 5. Country music player drinking water (7)
  4. 6. Sumo is tense, drinking water (7)
  5. 8. PEN Enclosure with more than adequate drinking water?
  6. 10. Like drinking water poured out initially on flat surface (7)
  7. 11. FOUNTAIN Fountain that provides drinking water
  8. 13. DAMON "The Martian" actor whose charitable foundation provides drinking water in developing regions: 2 wds
  9. 14. Fountain that provides drinking water
  10. 17. Safe drinking water org.
  11. 19. drinking water, say
  12. 21. Fountain that provides drinking water