Slip Joint?

[mbergen]

I've been asked to replace a counter top in a old building with all copper pipes. The original sink will be reused as well as the taps, I have done similar work in the past but not with copper pipes. I keep looking at the picture of the plumbing and am wondering if the slip joint has been soldered? If it has been then what would be a proper fix (keep in mind I'm a woodworker, not a plumber lol).
Any advice would be appreciated.

 

[Fmkehoe99]

Why not cut a few inches above the trap and install a new tailpiece, either rough brass or pcv. Then connect with either 1 1/2" fernco coupling or a rough brass slip coupling.

 

[mbergen]

Thank you for you response Fmkehoe99, I've found a brass double slip coupling locally, I'm guessing that would work fine?
I was also thinking of replacing from the wall to the sink with ABS (this way I can be a bit off when cutting out the new counter for the sink). Could something like a Bow Tubular to Tubular Coupling be used for this? http://www.canadiantire.ca/en/pdp/bow-tubular-to-tubular-coupling-1-1-2-in-0632206p.html

 

[Fmkehoe99]

Yes that type of coupling would work fine. I did not know how much of the original copper you wanted to leave. I would start from the wall stub out with plastic and go all the way up to the sink strainer basket.

 

[Fmkehoe99]

Or this might be an even better choice considering that the existing copper might have an uneven surface to it. This coupling is a bit more forgiving.

https://www.zoro.com/fernco-flexibl...AtghTZH1b2RQYPmXbEfle5euR7BeLiERoCCTQQAvD_BwE

 

[breplum]

To adapt from copper to tubular, use a shielded coupling like https://www.plumbingplanet.com/prod...less-steel-kt-series-specialty-coupling-1-12/
The all rubber types are a cheap but poor substitute. Long term, the more expensive, code compliant coupling is superior.
Then go plastic, poly tubular. White or black. NOT ABS. There is no actual ABS tubular, but we tend to call it that, but only as a shortcut.

 

[mbergen]

Thank you both.
Breplum, why not ABS? Sorry for my ignorance, for non-metal I've only seen ABS used here for drain pipes, p-traps etc.

 

[breplum]

ABS typically means glued fittings= with typically one union on a p-trap that lacks flex .
The poly traps I am referring to are slip joint, and come with modern, soft, beveled washers (orange or blue) make a foolproof, reliable assembly that can be readily dis-assembled and re-assembled with great ease. And they last.