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Block Gone Black?

post #1 of 7
Thread Starter 
I have an EK Supreme HF and its been in for 5Months now, the inside of the block where the water comes into contact with it has gone black.

My res is still crystal clear, I'm running Distilled water with a silver kill coil.

Is this normal?


P.S my tubing is black



Phone pic not the best but visible.
Edited by DeadMau5 - 5/15/11 at 1:12am
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post #2 of 7
You don't have aluminum and copper mixed in your loop do you?
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post #3 of 7
Can you post a picture of the block?
post #4 of 7
Lets see the gunk!
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post #5 of 7
It sounds like oxidation; this is generally why some members prefer nickel-plated blocks, as oxidation cannot happen unless the finish is stripped somehow.
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post #6 of 7
Thread Starter 
Quote:
Originally Posted by anoob View Post
You don't have aluminum and copper mixed in your loop do you?
No just a copper block.

Quote:
Originally Posted by DigitalMonkey View Post
Can you post a picture of the block?
Yeah ill put in original post.
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post #7 of 7
If it's a bit black then yeah it's just oxidation. Nickel blocks don't oxidize, my MCW-4870 never ever gets dirty or even oxidizes which is a big advantage for nickel blocks. The only time you should be worried is when you have copper and aluminum mixed in your loop. Swiftech was notorious for this with their GTX blocks, the top block was aluminum with a coating and the bottom piece was copper. What happen was the coating eventually all rubbed off away by the water cycling through. Well my block started to eat itself because of the aluminum top. Hence why I now own a full copper top for my GTX.

But it's nothing to worry about, just use a tooth brush to clean off the oxidation. Otherwise think about getting a nickel block in the future. I think my next block will definitely be nickel.
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