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Old 07-19-2019, 02:56 PM   #16
HS345
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I'm with Jim, you should never combine copper or brass, and galvanized pipe, it will corrode very fast due to electrolysis.

I'm also with Jim on the Delta tub spout fittings. Recently had a customer ask if I could repair a tub spout in another bathroom. I was building a shower for her, and she purposefully bought a tub/shower faucet set in the hopes that the tub spout could be used to repair her tub spout in the other bathroom. I reluctantly said I would try, but warned her that twisting on an old tub spout could easily result in "plumber's nightmare syndrome". I put it off, and put it off, and finally on the last day I was there, I figured I'd tackle it. Twisted off the old spout, good copper with a long stub out, cut the pipe, soldered on the Delta fitting, screwed on the new tub spout. Easy peezy, about a 15 minute job. Dodged the bullet, for once.
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Old 07-19-2019, 03:16 PM   #17
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Most galvanized is plated prior to cutting the threads, so you have exposed iron there. Plus, the ends often are not plated. In potable water, it will start to rust fairly quickly. In a tub spout, because it doesn't hold water, what little it rusts while drying out often will flush out fairly quickly, but it's not uncommon to eventually end up with a rust stain beneath it in the tub...not nice, and totally avoidable! Those pipe and fittings are good for rough-ins, but replace with brass or copper for the final.
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Old 07-19-2019, 04:57 PM   #18
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Good to know, I considered buying a manual pipe threader for nipples of in-between sizes but copper and male thread sweat fittings were quicker and easier.
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Old 07-19-2019, 05:35 PM   #19
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Not sure Wayne, I've never seen a non-PEX drop ear.
Oh, OK. Drop ears come in PEX x FIP, copper x FIP, and copper x copper, maybe other combinations. "Drop ear" just refers to the location of the mounting holes. You can also get a "high ear" elbow in at least PEX x FIP or copper x FIP; the ears are on the face of the FIP side.

Cheers, Wayne
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Old 07-19-2019, 08:28 PM   #20
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Come to think of it Wayne, I've seen the copper ones a lot on tearouts, maybe I should of said I've never used any other ones. I love PEX and use it almost exclusively.
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Old 07-25-2019, 08:18 AM   #21
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I prefer brass to copper
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Old 08-02-2019, 12:38 PM   #22
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Wow. I forgot all about this thread. Here's my current fix.
Used dry 2x4 for the cross piece. Would prefer to use a 2x6 or wider but I didn't have any that were dry. I used a sweat drop ear , with a 6 inch piece of copper soldered, with a pex connector. I also soldered a strap to the piece of copper. This thing shouldn't move.
Oh, and that piece of galvanized pipe is only there to level the angle and for a pressure test.
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Old 08-02-2019, 04:00 PM   #23
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Looking good, I like your screw choice...mix and match. I have a loose screw bin in my trailer that I actively use, I like thinking about a guy down the road having to switch bits 3 times to remove my stuff
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Old 08-02-2019, 09:56 PM   #24
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Old 08-03-2019, 09:29 PM   #25
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. I like thinking about a guy down the road having to switch bits 3 times to remove my stuff
now what did that guy ever do to you? I have run into that shit where I don't happen to have said dumb shit bit. In the Marine corps we would call you a blue falcon
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Old 08-04-2019, 12:21 PM   #26
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HAHA! I use torx screws alot, but when it comes to removing old work and finding the mix and match combo I can't help but pass the same frustration down 30-50 years. Sorta of like passing the torch
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Old 08-04-2019, 12:36 PM   #27
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Like I mentioned in post 2, my plumber says not to use Pex between the valve and shower head, he says the fittings reduce the flow too much. Are any of you finding this to be true? I'm wondering if my plumber is just being cautious or maybe blowing smoke.
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Old 08-04-2019, 01:02 PM   #28
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I have three showers. All have the same Kohler valve and Speakman shower head. One shower has pex between the valve and head. I don't find any perceptible difference in the water volume or pressure.
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Old 08-04-2019, 02:02 PM   #29
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Is it just a thing when the tub part of it is in play?
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Old 08-04-2019, 03:09 PM   #30
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I guess it could restrict flow, but most shower heads already do that. After switching out the tub spout drop ear it wasn't a night and day difference, in fact I couldn't tell it was more, but not having shower rise I knew something had changed even if ever so slightly.
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