Grounding????

[wiringnewyork]

A friend of my owns a restaurant and all his copper tubing for plumbing, hvac and other misc equipment containing copper is corroding at a rapid pace. His restaurant is near the water and I am wondering if there is anything we can do to prevent or slow this down. In the navy zinc plates would avert the electrolysis, anyone have any suggestions?

 

[pierre]

Re: Grounding????

Maybe he can installed coated piping.

 

[peteo]

Re: Grounding????

My suggestion, to read on this site about galvanic corrosion. Or, google 'sacrifical anode ground rod' which will find good information. Here's a quote from one of them:

"The real reason copper is used (for ground rods)is copper has high corrosion resistance. It becomes a cathode when joined together with a less noble metal such as steel in the presence of an electrolyte such as moist soil. The less-noble steel becomes a sacrificial anode that corrodes away first, leaving a relatively corrosion-free copper shell in contact with the soil."(sic)

 

[bphgravity]

Re: Grounding????

This may sound absured, however I recently read on the copper.com website that copper corrosion/errosion canbe the result of excessive water temperature and high velocity water flow.

The article claims that high velocity water caused by oversized booster pumping and/or pressure systems icreases the amount of gases, vapors, and solid contaminates that react with the copper alloy. The high water temperature accelerates this process.

The article also claims this event is predomiant in restaurants and laundry facilities. There was no evidence of electrolysis or any other galvanic actions taking place on the studied piping.