Removing grey (polybutylene?) connection from copper faucet connection

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Old 12-27-18, 04:09 PM
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Removing grey (polybutylene?) connection from copper faucet connection

Currently replacing our bathroom faucet. Please see the photo below. How does the gray rubber pipe disconnect from the copper pipe above it. I already unscrewed the fitting that goes over it, but it looks like this piece somehow pops off? Don't want to force it though.

Thanks in advance!

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Last edited by PJmax; 12-27-18 at 04:32 PM. Reason: added pic from link
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Old 12-27-18, 04:33 PM
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It's just held on there with a gasket. Give it a little bend or tug and it will break loose.
 
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Old 12-27-18, 05:26 PM
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With age and calcium build up they may stick together. Sometimes pretty hard.
 
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Old 12-27-18, 05:29 PM
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Thanks. First one popped off OK with some pulling and tugging. The second one's giving me trouble, since that copper fitting is a lot older with more corrosion. Trying some WD40.
 
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Old 12-27-18, 05:39 PM
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That's a supply tube and should be connected to a shut off valve. Why not just cut it and replace it with a SS supply tube?
 
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Old 12-27-18, 08:33 PM
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So it turned out that the copper fittings on the new faucet were shorter, and didn't extend to the gray rubber fittings. I ended up removing the gray fittings and using a set of the braided stainless steel fittings that I happened to have. One is dripping a bit when I turn the faucet on, so may have to replace that one, but other than that it went OK.
 
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