No. of Recommendations: 1
Its possible you encountered galvanic corrosion. When different metals come together, the corrosion due to one gets transferred to the most active metal. If you had a steel ball in a brass or copper body, that would be disaster.

The most common way to deal with this kind corrosion is to attach a more active metal like zinc to the metal. Bars of zinc have been used for this.

But as a practical matter simply checking for corrosion occasionally could be your best solution. Or maybe a stainless steel valve would last longer.

In chemistry, this is known as the activity series. Zinc is higher than iron is higher than copper. You can find info on all metal elements if you look for it. But some like aluminum get protected with an oxide film. So difficult to predict.
Print the post  


Disclaimer - Please Read
A message about professional advice.
Useful Resources
Our Home Center has all you need to make buying and owning a home a great experience. Get or refinance a mortgage and much more!
What was Your Dumbest Investment?
Share it with us -- and learn from others' stories of flubs.
When Life Gives You Lemons
We all have had hardships and made poor decisions. The important thing is how we respond and grow. Read the story of a Fool who started from nothing, and looks to gain everything.
Contact Us
Contact Customer Service and other Fool departments here.
Work for Fools?
Winner of the Washingtonian great places to work, and Glassdoor #1 Company to Work For 2015! Have access to all of TMF's online and email products for FREE, and be paid for your contributions to TMF! Click the link and start your Fool career.