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Old 03-23-2010, 09:39 PM   #1
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Ice Maker Water Hammer


The water supply to my ice maker is via a small copper tube. This tube runs through the floor into the laundry room below which is tapped into a 1/2" copper cold water pipe via a saddle valve. How do I eliminate the water hammer? Do I install a mini-rester in the 1/2" cold water pipe before the saddle valve or .....???

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Old 03-23-2010, 11:48 PM   #2
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Ice Maker Water Hammer


Replacing the "small copper tube" with a larger copper tube can help.

Water hammer is caused when high energy moving water is suddenly stopped by the closing of a valve. Because the energy in moving water increases by the square of the speed, slowing the water down greatly reduces its energy. Larger pipes mean slower moving water.

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Old 03-24-2010, 06:52 AM   #3
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Ice Maker Water Hammer


I seriously think it's another problem not the ice maker line the water flow through the ice maker water make up line is minimal in a 1/2 inch water line is a pin hole saddle valve I would look somewhere else for the noise producing hammer. Washing machine could be the main culprit.

I wouldn't increase the size of the line.
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Old 03-25-2010, 11:37 AM   #4
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Ice Maker Water Hammer


Thanks for the replies! Upon further investigating, I found that the tubing was not secure against the joist. I secured it with a couple of clamps, and the noise is gone. Apparently, the tube was banging against the joist when the water would quickly shut off and echo through the house.
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