How did the water tower survived the Chicago fire?

Related questions

1. Is Chicago Fire over for the season?
2. What is the Chicago Water Tower made of?
3. How did the Chicago Fire affect Chicago?
4. Will there be a Chicago Fire Season 8?
5. How did DuShon Monique Brown from Chicago Fire Die?
6. Are the Chicago Fire cast real firefighters?
7. Why did Charlie leave Chicago Fire?
8. How did Benny severide die?
9. What stopped the Chicago Fire?
10. Does Herman die on Chicago Fire?

Tags

1. #station
2. #pumping
3. #trautman
4. #tower
5. #after
6. #common
7. #german
8. #water
9. #building
10. #great
11. #standing
12. #fireman
13. #immigrant
14. #frank
15. #remained
16. #chicago
17. #survived
18. #because