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    agala3's Avatar
    agala3 Posts: 1, Reputation: 1
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    #1

    Mar 1, 2010, 01:04 PM
    What can cause rusting and /or pitting in stainless steel?
    A friend has a stainless steel commercial dishwasher in his restaurant.It is 2 years odl aand rust and pitting is starting to appear.What could be the cause.The pitting is in a non welded area so I don't think disbursement of chrome is an issue.LOw grade stainless steel perhaps?
    Scleros's Avatar
    Scleros Posts: 2,165, Reputation: 262
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    #2

    Mar 2, 2010, 03:11 AM

    No stainless is stain-proof without exception. Low grade is probably the most likely. Does your friend dry out the dishwasher between uses? To pit, I would think long term standing water or acidic water would be needed. Stainless can also suffer chloride corrosion in higher concentrations/temperatures which may result as water droplets evaporate as the washer air dries. May want to experiment with detergents.

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