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Old 11-07-2019, 07:24 AM   #81
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The only braided supply lines we use are the WB ones which have a grey plastic nut for the ballcock. That grey plastic is zytel aka nylon with about 30% glass fiber fill. They don't fail.


When I use chrome supply lines I try to use brass nuts for the ballcock. If not the only plastic nuts I will use are the ones which come with fluidmaster fill valves. I have seen many of the cheap plastic nuts that come with kohlers crack.














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Iím not talking about split coupling nuts. Iím talking about the actual crimped connection coming apart.
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Old 11-07-2019, 07:30 AM   #82
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Iím not talking about split coupling nuts. Iím talking about the actual crimped connection coming apart.



Yeah, I understood. I have seen plenty of cheap flex supplies with pretty rusted and leaking crimp connections. Never seen or heard of the crimp blowing yet though, just the plastic nuts.












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Old 11-07-2019, 09:11 AM   #83
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Usually they only crack when over tightened..

I've seen many fail...

The was a medical building that was closed for a holiday and on monday morning at 5 am I got a call entire place was 4" deep with water... like probably 5000 square foot building was a mess all for a stupid 5 dollar supply line... our basement made us go back put brass supplies with the brass nut as.well on 20.toilets in building
I've never seen a brass nut, you mean the 1/2" nut at the fill valve?
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Old 11-07-2019, 09:25 AM   #84
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Quote:
Originally Posted by Venomthirst View Post
Usually they only crack when over tightened..

I've seen many fail...

The was a medical building that was closed for a holiday and on monday morning at 5 am I got a call entire place was 4" deep with water... like probably 5000 square foot building was a mess all for a stupid 5 dollar supply line... our basement made us go back put brass supplies with the brass nut as.well on 20.toilets in building
I've never seen a brass nut, you mean the 1/2" nut at the fill valve?
It’s called a coupling nut. It’s actually 3/4”.
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Anyone else use hard closet risers?-1874dd01-354b-43d8-9d10-7ee91d96b54c_1573133089647.jpeg  

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Old 11-07-2019, 06:06 PM   #85
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Itís called a coupling nut. Itís actually 3/4Ē.








Using those is the professional way. They will not crack and flood someone's place.
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Old 11-07-2019, 06:13 PM   #86
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Itís called a coupling nut. Itís actually 7/8".

The 7/8" comes from the fact that the shank accepts 5/8" od pipe such as 1/2" nominal copper or 3/8" IPS pipe. The shank was originally made from 7/8" OD brass pipe and had an 1/8" thick wall.




















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Old Today, 08:48 AM   #87
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The 7/8" comes from the fact that the shank accepts 5/8" od pipe such as 1/2" nominal copper or 3/8" IPS pipe. The shank was originally made from 7/8" OD brass pipe and had an 1/8" thick wall.




















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3/4, 7/8. Practically the same thing.

Iíve heard them called 7/8 before. Iíve always called them 3/4 simply because they will screw on 3/4Ē threads.
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