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Old 03-15-2013, 10:27 PM   #1
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Changing Toilet Supply Line


Hey guys, I'm a new homeowner trying to remodel a small half bathroom. Unfortunately I've run into something I'm not familiar with. I want to put in a new toilet but whatever kind of line this is, it doesn't reach the tank of the new bowl as the new toilet is a little higher than the old one. I want to change to a braided flexible line but I'm not even sure what kind of line this is. Any ideas? Here's a pic.



I tried to unscrew the small nut at the base of the grey line but it seems to go down into the larger nut below it.

Please forgive my lack of knowledge on the subject, I'd rather learn something new and save my money than call a plumber and pay to have something done for me that is quite possibly simple to do myself.

Thanks.

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Old 03-15-2013, 10:32 PM   #2
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Changing Toilet Supply Line


looks like some kind of home made line. Looks like someone modified it a bit.

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Old 03-15-2013, 10:37 PM   #3
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Changing Toilet Supply Line


Looks like its been leaking as well. Did you try 2 wrenches, one on the big nut to steady the pressure and one on the smaller one (ccw). Spray a little pentrating oil on there and tap it few times let it set for awhile. You don't want to use just 1 wrench you may break it. Be careful, it looks pretty old and rusty.

Last edited by jmon; 03-15-2013 at 10:40 PM.
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Old 03-15-2013, 10:44 PM   #4
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Changing Toilet Supply Line


Well what originally happened was the toilet wouldn't fill with water in the tank all of a sudden. So since I had an identical toilet in the basement I decided to swap toilets out but apparently the new one is a little higher because I can't get a tight fit with that line to the bottom of the tank. It just leaks like crazy. I've just never seen this kind of line before, I'm only familiar with the braided flexible ones. Now I want to just want to put a whole new toilet in but I'm not sure how to remove that grey line that's in there right now. I saw something similar at home depot this evening, I think it's this: http://www.homedepot.com/p/t/1001295...1#.UUPVfBdOS6U
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Old 03-15-2013, 10:46 PM   #5
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Changing Toilet Supply Line


Does that smaller nut look like it's screwed onto the larger nut somehow? Or is it just one big nut soldered or threaded onto the copper pipe? Can't really tell by picture, it's a little cloudy.
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Old 03-15-2013, 10:46 PM   #6
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Changing Toilet Supply Line


That looks like a PEX or poly B supply line.
Your best bet is to get a copper mini pipe cutter and cut the 1/2" supply line below the valve. Clean up the pipe and install a 5/8" compression by 3/8" compression straight stop. From there use a braided supply line.
Of course to do all this- you'll need to shut the water off at your main house valve.
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Old 03-15-2013, 10:52 PM   #7
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Changing Toilet Supply Line


Thanks for the replies guys. So basically I just want to cut the whole dang thing off and just install a new stop altogether.
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Old 03-15-2013, 10:52 PM   #8
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Changing Toilet Supply Line


yea, that's pex line. They are commonly used for that purpose, because you can make them any lenght you need. I agree with you, I like the braided ones better.
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Old 03-15-2013, 10:53 PM   #9
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Changing Toilet Supply Line


That's correct. It will look a lot more professional as well.

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Old 03-15-2013, 10:56 PM   #10
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Changing Toilet Supply Line


Quote:
Originally Posted by Wolfson View Post
Thanks for the replies guys. So basically I just want to cut the whole dang thing off and just install a new stop altogether.
For me, that would be the simplest. Be sure you read up on installing a compression stop
Or you could wrestle with that nut for a while.
If it comes off- can you not just pull the old supply line out then replace it with a 12" flex?
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Old 03-16-2013, 12:25 AM   #11
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Changing Toilet Supply Line


Well, turns out this thing just pulls right out. First time I've ever seen this personally. Here it is.

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Old 03-16-2013, 12:37 AM   #12
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Changing Toilet Supply Line


Sounds like all you need is a longer flex now
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Old 03-16-2013, 08:58 AM   #13
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Changing Toilet Supply Line


That valve was new about when Hitler was in power.

Shut off the main. Flush the toilet. Buy a close quarters pipe cutter, a straight compression supply valve for 1/2 inch copper, some fine plumbers emory, and a SS braided toilet supply. Clean up the pipe like a shoeshine boy just under the valve, all around. Do not sand in line with the pipe. Only shoeshine style. then cut the old valve off, loosen the nut to the toilet and throw away the gray pipe valve and nut. Put the compression nut on the pipe cup side up, slide on the ferrule, set and bottom the new valve, and while holding, screw the compression nut to the valve body. A little light machine oil on the threads helps. Put a hold back wrench on the valve body, and tighten the compression nut to just a little over snug. This forms the brass ferrule to the valve seat. DO NOT CROSS THREAD, and DO NOT OVER TIGHTEN. Install new braided toilet supply. Note: Toilet supplies are different from sink supplies.

Good Luck.
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Last edited by jagans; 03-16-2013 at 09:03 AM.
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Old 03-16-2013, 12:54 PM   #14
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Changing Toilet Supply Line


Thank you, that's exactly what I'm going to do.

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