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Old 06-02-2006, 09:06 AM   #1
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riser tubes


When installing copper riser tubes for a sink how much do you tighten the connection to the faucet valve? I know what the procedure is for the compession end on the stop valve is but am unsure about the faucet valve. thanks

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Old 06-02-2006, 01:11 PM   #2
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Originally Posted by farrington135
When installing copper riser tubes for a sink how much do you tighten the connection to the faucet valve? I know what the procedure is for the compession end on the stop valve is but am unsure about the faucet valve. thanks
Tighten it by hand and then turn the fitting about 1/2 turn more. It is better not to overtighten. You can always tighten the fitting a little more if there is a drip after you turn the water back one. If you over tighten the fitting then you risk stripping the the threads or damaging the fittings. You can also put thread tape on the fittings to help the fittings from leaking. Are you using a basin wrench?

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Old 06-03-2006, 12:29 PM   #3
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Could use a hand here. I installed one riser this morning and it drips from the faucet end. I tightened it more and still leaks from where the tube enters the nut. It's real tight already so I don't want to risk breaking something. I used teflon tape on the threads. I took everything back apart and there is barely an indentation on the bullnose end where it enters the faucet valve body. I was expecting a decent one. These are Watts risers. Are they any good??? There is chrome on the bullnose and it's not very smooth. Should I grind it down to the copper for a better fit?? thanks
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Old 06-03-2006, 11:15 PM   #4
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I gave up on those things years ago when they came out with the braided stainless risers. I've never had one leak, drip or weep at either end. And they look better IMO.

If you can't get yours to seal, Farrington, it can't hurt to smooth it off with some emery cloth or fine sandpaper. Worst comes to worst you have to go out and get a couple of braided ones, you'll never go back!
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Old 06-04-2006, 07:19 AM   #5
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Did you cut the lines too short?
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Old 06-04-2006, 11:30 AM   #6
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It's not too short and it's seated properly. I did sand it a bit for a smooth surface. No burrs either. The copper bullnose end just seems too thick to crush enough to get a good seal. I tried a trick that someone told me about that I'm not so sure is lasting. Wrap the bullnose 2 or 3 times with teflon tape or use pipe dope on it. It worked. I put them on last nite and no drips. Like I said though I don't know if it will last. I'll just keep and eye on it. I would use the steel braided but I can't find them in 9". thanks
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Old 06-04-2006, 02:17 PM   #7
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It souds like you have a compression fitting shut off valve at the bottom of the riser. You may want to loosen the compression nut jsut enough so that the riser is loose. Then tighten the fittings at the faucet. The lower compression nut may be restricting the upper part of the riser to 'seat' properly on the faucet fittings. After you tighten the upper part of the riser then tighten the lower part of the riser.

The teflon should keep it from leaking.

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