Why is the water brown after hydrant flushing?

Related questions

1. Is fire hydrant water drinkable?
2. Can anyone use a fire hydrant?
3. What is a private fire hydrant?
4. What is in fire hydrant water?
5. Where does fire hydrant water come from?
6. Is it legal to tap into a fire hydrant?
7. Is it illegal to sit on a fire hydrant?
8. Is it illegal to open fire hydrants?
9. Who invented fire hydrant?
10. What is the difference between a wet barrel and dry barrel hydrant?

Tags

1. #mains
2. #hydrants
3. #pipes
4. #mineral
5. #clarity
6. #distribution
7. #quality
8. #businesses
9. #quick
10. #ensures
11. #water
12. #fighters
13. #residents
14. #maintain
15. #deposits
16. #clearing
17. #hydrant
18. #helps
19. #flushing
20. #available
21. #adequate
22. #release