1. TREATMENT PROCESS (Chicago)

2. CRIBS

3. CHICAGO – WATER TREATMENT

4. CHEMICAL TREATMENT (Chicago)

5. BASIN (Chicago)

6. SAND FILTER (Chicago)

7. FILTER SYSTEM (Chicago)

8. PIPING (Chicago)

9. 2nd LARGEST FACILITY (Chicago)

10. WATER TOWERS

11. PEACH TOWER

12. WATER SUPPLY

13. WATER SUPPLY FROM CITY MAIN

14. WATER PRESSURE

15. SERVICE PRESSURE

16. AIR CHAMBER

18. SANITARY DRAINAGE

19. WASTE WATER REMOVAL

20. BUILDING SEWER

21. STACK VENT

22. SOIL AND WASTE STACKS

23. SINK TRAP

24. APPLIANCE TRAPS

25. GRAYWATER

26. SEWER LINES IN SUBDIVISION

27. SEWER LINE CONNECTIONS

28. SECTION THROUGH MANHOLE

29. Table 2. Recommended septic tank liquid capacities.
Minimum Liquid
Capacity for Homes with
Number of Minimum Liquid Garbage Grinders
Bedrooms Capacity (gallons*) (gallons#)
3 or less , ,500
, ,750
, ,000
*Liquid capacity is the tank volume below the outlet. An additional
internal volume equal to 20 percent of the liquid capacity is needed
for floating scum storage.
#Garbage grinders require septic tanks with about 50 percent
greater volume and a second compartment is often required.

30. SEPTIC TANK

31. PERC TEST

32. SECTION THROUGH TANK

33. FIELD LINES

34. CLOSED LOOP

35. ABSORTPTION TRENCH

36. SEEPAGE PIT / SAND FILTER