Nelson Plumbing      

Undergound Piping


      408 280-5311

Copper Repiping


Recirculating Systems



About Us
Why Use Nelson
How We Repipe
Circulating Systems
Copper - Galvanized
Galvanized Technical
When to Repipe
About Water Service

Galvanized Piping

Galvanizing is the application of molten zinc to pre-formed steel pipe. 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 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.


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.
  About Us In Business since 1983 Phone 408 280-5311