Solder male fittings onto rigid faucet supply lines


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Old 06-13-16, 08:03 PM
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Solder male fittings onto rigid faucet supply lines

Hi,

A relative bought a faucet that for some reason comes with rigid(or semi rigid?) supply lines, perhaps because he bought it used. Is it possible to solder on male adapters for flex lines?

He says the rigid lines leak at the shutoff but I told him the pipe needs to go into the nut perfectly straight and you should use new ferrules.

Thanks
 
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Old 06-13-16, 08:11 PM
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Do you mean soft copper lines ?

You are correct.... you need to use the proper ferrules when installing those lines into the valves.
 
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Old 06-13-16, 08:27 PM
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Bottom of picture is the new one.
He is using a flex that connects to the copper so he's probably over tightening or the copper pipe is distorted or scratched.
He told me this is a older KFC faucet, supposedly originally $1700. I hope it does the dishes for that price!
 
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Old 06-13-16, 09:28 PM
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Those are compression fittings. You can't connect a braided flex straight to them, if that is what they were trying to do. Those pipes are meant to go straight into a 3/8" compression shutoff valve. You will want to put a 3/8" compression adapter on those ends if you want to hook them up to a braided hose.
 
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Old 06-14-16, 04:04 AM
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I use the below pictured supply lines to extend rigid copper supply lines.

One end is standard 3/8" compression to angle stop, the other end is a female 3/8" compression fitting.
I think they are called a Delta Type connector but not sure. The only store I find these at is Lowes, I haven't seen them anywhere else.

Don't overtighten the compression ferrule to the copper. Wrench tighten slightly until ferrule grabs the tube, then tighten an additional 1/2 to 3/4 turn.

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