The document describes the five basic types of water storage tanks: 1) leg/multi-column tanks, 2) pedestal/spheroid tanks, 3) fluted column/hydropillar tanks, 4) composite tanks, and 5) ground storage tanks. It provides details on the characteristics and examples of each type, and discusses common coating systems used to protect water tanks from corrosion.

4. Double Ellipsoidal (DE)

7. Torus Bottom (TB)

9. Long Creek Water Association Meridian, MS

11. East Coweta County Coweta County, GA

13. Ped/Spheroid

15. Mississippi Valley State University Itta Bena, MS

17. Corridor X Elevated Water Storage Tank Winfield, AL

19. Bevill State University Elevated Storage Tank Sumiton, AL

21. Fluted Column/Hydropillar

23. Interstate 20 Elevated Tank Pearl, MS

25. Refuge Golf Course Elevated Tank Flowood, MS

27. Village Creek Elevated Water Storage Tank Jefferson County, AL

29. Composite

31. Phil Campbell Elevated Water Storage Tank Phil Campbell, AL

32. Phil Campbell Elevated Water Storage Tank Phil Campbell, AL • Year: 2004 • Owner: City of Phil Campbell, AL • Fabricator: Caldwell Tanks • Engineer: Price, Rider & Mullins • Paint Contractor: R&R Painting • Size & Style: 500,000 Gallon, Composite Elevated Tank • Products Used: Ruff Stuff 3300, Armorguard P-14 Epoxy Primer, Armorguard Epoxy, Indurethane 5500 Enamel

35. Reservoir

37. Standpipe

39. Corrosion – A natural electro-chemical activity where a processed compound of materials (steel) returns to its lowest possible energy state (iron oxide).

41. Corrosion Occurs Through the Action of an Electrochemical Cell Four Elements: 1 . Anode 2 . Cathode 3 . Metallic Path 4 . Electrolyte

42. Protective Coatings

43. Coatings Provide Corrosion Protection in Two Different Ways: 1 . Barrier Protection– Inhibit the corrosion process by eliminating the presence of electrolyte (most paint films) 2 . Galvanic Protection– Sacrificial or cathodic protection (zinc-rich primer)

44. Surface Preparation is vital in cleaning the surface of all contaminants and it also provides a profile for the paint film to anchor into (i.e.– good adhesion).

45. Paint Consists of Three Main Components: 1 . Resin 2 . Pigment 3 . Solvent

46. Generic Coating Types Typically Used in the Water Tank Industry: 1. Epoxy (Two Component) – Used for primer, intermediate and interior immersion – Hard, abrasive resistant – Chalk & fade when exposed to ultraviolet light 2. Zinc (Two Component) – Used for primer on interior or exterior – Galvanic/sacrificial properties 3. Polyurethanes (Two Component) – Used for exterior of tanks. – Strong color/gloss retention performance

47. Generic Coating Types Typically Used in the Water Tank Industry: (continued) 4. Acrylics (One Component) – Used for exterior repainting/overcoating existing tanks – Good adhesion properties – Imposes least amount of stress to older paint 5. Aluminum Alkyds (One Component) – Used for exterior repainting/overcoating existing tanks – Still some of these tanks around (Older tanks) – Utilizes aluminum flake pigment – Has “chrome”appearance to it

48. Aluminum

49. Interior System for a New Water Tank: Surface Preparation– SSPC-SP10 (Near White Blast Cleaning) One Coat System Field Applied: 1 . 100% Solids Ceramic Epoxy a) Stripe Coat/Seam Treatment applied wet on wet

51. Seam Treatment/Stripe Coat

52. Exterior System for a New Water Tank: Surface Preparation– SSPC-SP6 (Commercial Blast Cleaning) Three Coat System: 1 . Primer– Zinc or Epoxy 2 . Intermediate– Epoxy 3 . Finish– Polyurethane a) Clear coat optional

54. Specify Induron as a Standard of Quality for your Water Tank Projects – High Performance products – Strong and virtuous family-owned company – Conscientious and professional personnel – Focused and committed to the water industry – Unmatched service and support for your projects