Galvanizing is the application of molten zinc to pre-formed steel pipes. Zinc gives iron a limited, cathodic protection.

Note: Common impurities in zinc are lead and cadmium.

Modes of failure

Four basic processes, indirectly related, stimulate interest in the corrosion of galvanized pipe.

• General, uniform corrosion

• Release of metals

• Pitting

• Tuberculation
  
  

Note: How fast corrosion happens will vary due to water quality and manufacturing processes of galvanized pipe.

Symptoms of corrosion
(Noticeable at tap)

• Low volume/pressure

• High level of iron and zinc

• Metallic taste

• Mineral Build up

• Discoloration of water
  
  

Other Materials

There are other, often inexpensive, alternatives to copper piping. All are synthetic.

Galvanized Piping

Copper Piping

• Non corrosive

• Non synthetic (copper piping, with proper installation, will not break down)

• Long, consistent history of reliability

• Solder joints are as strong as pipe

• Can outlast the structure in which it is installed

• Carries a 50 yr. manufactures warranty

• Has stood the test of time to earn customer satisfaction

• Copper is 100% recyclable

• Copper is a sustainable material

• Copper, recovered as scrap, is as usable as primary copper refined from ore.