Whatever you do, if you have any copper DO NOT LET THE PLUMBER HAVE IT!  I was lucky enough to grow up in a family who are scrap metal recyclers & I am amazed at the money people literally give away with their old copper tubing.  You'd be amazed at how little copper it takes to equal $100.  Look for a reputable recycler in your area (call different yards for prices) & earn some extra cash!  Even old extension cords have quite a bit of copper in them.  Make $ & go green.

Totally different topic...also save your old car batteries & recycle them at a metal recycler...you can get up to $7 a battery

Now that you mention it, we do have a little bit of copper in our home. Only on the water heater, but it's there!

Yes, you can connect copper and Pex.  It was recommended to us with our renovation, but my husband wanted to have copper to keep with the existing.  Our neighbours who built about 4 years ago did a combination of copper and Pex. 

Sillygirl, I can't answer that for you. Ours was installed in a new home so no idea on whether it can be attached or used with copper.  If you have a Lowes, check to see if they carry it. Some of ours do, but not all since most are inside the city that doesn't allow it.

~Becky <><

PEX huh? This looks like a nice alternative... I already have some (though not much) copper piping, can it be hooked up to the existing pipes I already have?

Heh, I was also going to suggest PEX. Cooper is HUGELY expensive right now. PEX is much more durable and easier to install.

We put it in our new house about 7 years ago. It's also what were going to install in the 100 year old farmhouse we're renovating.

I was going to suggest PEX tubing too. That's what we installed in our home. Even with four bathrooms and the kitchen that all would have needed separate copper lines (more $$) it was easily a DIY project. our teenage daughter helped her Dad install it. It's pulled through just like electrical wiring. No countless elbows that need sweating like copper. It comes in red white and blue. We did red for hot and blue for cold water, but you can save by using all white. I have pictures on our other computer if you'd like to see it installed. Make sure to check codes in your area. Not all areas allow it. If your local inspector is like ours, he'll be happy to answer any questions you need answered.

~Becky <><

I would use PEX tubing.  We just added a new 5-piece bathroom and used copper pipe because that's what we already had.  PEX tubing is much more cost effective for the product and for the labour (much cheaper to install).