If you have a compression fitting, say a 1/2 by 1/2 coupling, can you
remove the compression nut and ferrule, clean and flux the coupling and
then apply solder/heat? Basically, in a pinch, could you sweat a
I suppose you could. Necessity is the mother of invention. But we
must ask why you'd not just use an ordinary sweat coupling?
One time I got so frustrated at a 1/4" compression coupling I was
using on an icemaker, that I soldered the nut to the tubing so that the
stupid thing wouldn't loosen as I pushed the refrigerator back into
position, but I wasn't proud of myself.
This particular application is for a 1/2" ball valve leading to an
outside spigot. I'm worried that if someone is a little aggressive
with it, it can loosen up or even pop out over time. I'd rather solder
a valve in place than use a compression, but all I had with me are
compression ball valves. I believe its possible to remove the nut and
ferrule and solder the copper tubing directly to the shut off, if the
shut off is treated like you would a regular sweat. I just wanted
to double check, rather than find out the solder wont hold and have a
Also was wondering what the group's opinion is on the sharkbite or
similar type of 'push fit' couplings? If you havent seen them or arent
familiar with them, you can supposedly use pex or copper tubing, and
the fitting locks onto the pipe once you push it on. No special tools
except a plastic C can be bought if you wanted to unlock and remove
it.. Different than pex type fittings. They seem a little expensive,
but in a pinch, I'm sure they're worth it.
Mike Grooms wrote:
I'm sure the soldering of the compression fitting will hold, but
it'd be smarter to just get a sweat valve. The fitting will be deeper,
and it's actually designed to be soldered. They only cost $5.00 or so.
If properly installed, the compression valve will hold too.
If you sweat the compression valve as you describe, the plumber who
sees it will think you're a moron. There's a difference between doing
something unorthodox in a pinch, and doing something unorthodox when you
could have done it correctly.
The next thing you'll ask is if a radiator hose can be used as a
drain. Get the point?
I picked up a couple of couplings just for grins a few months back, and used
them the same day.
I now stock everything they make, including 1" on the truck.
They work great on copper and pex.
Our customers don't care about the price, they just want the water back on
Combine the shark-bite with ProPress and turn all day jobs into half day
jobs for the same or more money.
I've been trying to tell kids all along, water now !
I learned I can rob more money faster and no cops
using a 18" Ridged pipe wrench over anyone else with
a 6" barreled S&W !
BTW, carry it all, bet a buck you will find out the one thing you
ani't got is just what you need.
that they can't figure out how to fix, don't have the special tools needed
to solve the problem, or figure its not in their job description.
No bet, you get a call to find and repair a water leak in a wall, then after
you find whats leaking, its not what you or they expected.
Last week an hour service call for a chilled water line turned into a
weeklong project for three guys, a 45' knuckle lift, and more sweat
than I really wanted to produce. But then again, they needed it NOW!!!!!
And were happy to pay the price.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.