[Shop-talk] need some copper plumbing help from the gurus

[Donald H Locker]

Even after all the other comments, I'd still be leery of that piece of 
pipe. The wall thickness of 0.009" won't hold much pressure, even if you 
are successful in attaching to it.

Donald.

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On 20-Oct-2018 13:07, john niolon wrote:
> When we built my house/shop 25 years ago I had the plumber install a 3/4” 
> water line to the shop and cap it off.  I was going to put in the sink 
> and the outside faucet when I got time.  Well,  this week I got time
> I cut the cap off and test fitted a 3/4” Tee to start dry fitting the 
> plumbing for sink/faucet.  The Tee wouldn’t fit on the tubing.  I cleaned 
> it well but the Tee was still too small to fit over the tubing.  It looks 
> like he used coiled tubing, or at least that’s what’s coming up thru the 
> concrete.  I tried several fittings and even cut the tubing lower to see 
> if it was crimped or out of round...  it mic’d the same all the way 
> around it in several places
> I mic’d the tubing and the fitting and here’s the results
> tubing i.d. is  .882” which is just over 7/8”
> tubing o.d. is  .900”  which is just under 29/32”
> a new standard Tee i.d.is .876”   which ain’t gonna fit over .900
> if I can find one fitting to get this to standard 3/4” size I’m good to go...
> did the old stuff differ from todays standard “
> after researching fittings a little I see that there are several ‘types” 
> of fittings.... from plumbing to hvac to whatever...
> anyone wanna try and give me some guidance here... the net is confusing 
> and offers little on actual dimensions
>
> thanks
> john
>
>
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