Replies

1. GBA Editor
   Kiley Jacques|Sep 03, 2020 09:42am|#1

   Hi Gabriela,

   Since you are a fan of the soldering method, you might appreciate this
   Mastered in a Minute video that offers a few tips for getting a good solder joint

2. 
   Steve Knapp CZ 3A Georgia|Sep 03, 2020 10:44am|#2

   Gabriela,

   My old-school plumber loves press-on copper. When he re-did some lines in my home to accommodate a whole-house water filter, that's what he used. It was a little more expensive than soldered copper, but worth the extra cost, in his opinion.

3. Expert Member
   Zephyr7|Sep 03, 2020 11:56am|#3

   有两种类型的这样的配件sometimes confused: the so-called "sharkbite" style, which poke onto the end of the pipe, grip the pipe with a sort of ring of teeth, and seal with an O ring, and the "hypress" type which are installed with a large crimp tool and seal with an internal O ring.

   I'm not a fan of the sharkbite type except for emergency repairs. I have specced MANY hypress fittings on chilled water lines and other commercial lines up to 2-1/2" and I've never seen a failure. My mechanical contractors love them. They are a big labor savings over soldered fittings, especially on the larger pipe sizes where soldering is a bigger deal.

   I admit that I used to mistrust the O ring seals, just like I used to spec welded fittings for large (4+ inch) steel pipe, but now use victaulic fittings, which are a type of large clamp-on fitting that you commonly see on fire sprinkler pipes in big warehouse places like Costco. Those have almost a century now in the market and a good reputation.

   I'd still prefer soldered fittings on 1/2 through 1" copper pipe since those solder quickly. Solder can and does fail sometimes (cracks, etc.), but I still trust it more than an O ring seal. That said, there are a LOT of O ring sealed fittings out there, with a very, very low failure rate. You're pretty safe either way.

   Bill

4. 
   Tom May|Sep 03, 2020 01:32pm|#4

   Only time will tell. I've seen plenty of systems come and go but soldering still prevails in my opinion. One drawback to crimping, whether it be pex or copper, is that it's tough to install in tight spaces. And as you mention, once you have an o ring or press ring, your depending on the quality and lifespan of the material exposed to the elements you mention as well as expansion and contraction.

5. 
   Steve Knapp CZ 3A Georgia|Sep 03, 2020 02:18pm|#5

   One downside to soldering (and I love to solder) is the open flame. More than one structure has gone up in smoke because of it.

1. Expert Member
   Zephyr7|Sep 03, 2020 02:36pm|#6

   You can get small fireproof pads to put behind whatever you're soldering. They're not very expensive and I highly recommend them. Keep some water nearby too just in case. It's easy to put out any fire that gets going while you're soldering as long as you're paying attention and act quickly.

   Bill

1. 
   Charlie Sullivan|Sep 03, 2020 08:07pm|#7

   I once made the mistake of putting some aluminum foil tape on a wood surface behind where I was soldering thinking that would offer a little extra protection. The adhesive on the tape caught fire much more easily than the wood would have. Fortunately it was very easy to put out, as Bill says, and I now have one of those fireproof pads.

6. 
   Jamie B|Sep 04, 2020 11:29am|#8

   A wet rag tied around the pipe "upstream" of where you're soldering helps keep the pipe cool when you're considering things like foam-copper interactions catching on fire.

   Solder is pretty tried and true, but I'm not afraid of technology either. Uponor is my favourite, I refuse to use regular pex-B. but I'll Solder copper if the piping is exposed and needs to be pretty like in a mechanical room.

   Pressfit copper (not pushfit ie: sharkbite) is pretty cool. Looks Super fast if you're set up for it (that's a big if) Yes it has o-ring seals which is the debate here. It's hard to say how long it'll last but I personally don't worry about it, I expect I'll be long dead before the seals become a problem.