It may be worth the effort to buy a pair of tubing benders.  I have a handtool designed for three sizes of tubing.  Don't recall how much it cost but I doubt it was more than $30.
Roman

On Mar 29, 2017, at 7:24 PM, Stuart MacMillan <stuartmacm@GMAIL.COM> wrote:

I'm not an expert, but I've spoken with one.  What you need is known as "refrigeration" copper tubing, which is gas rated. This is not the same as "refrigerator" water copper tubing for ice makers! Very confusing: http://www.homedepot.com/p/3-8-in-O-D-x-20-ft-Copper-Soft-Refrigeration-Coil-Pipe-D-06020PS/202287075 It's also available in 10' lengths. It's soft, and you can use a spring type tubing bender with it: http://www.homedepot.com/p/HDX-Tube-Bending-Spring-Set-HDX073/204218597  or a hand held plier type: http://www.homedepot.com/p/HDX-Tube-Bending-Tool-HDX074/204218599 

You also need a flaring tool: http://www.homedepot.com/p/Husky-2-Piece-45-Degree-Flaring-Tool-Set-80-528-111/300412627  If you use a spring bender, flare after you bend it or it will be a single use tool. ;-0

HF probably has these tools for less.

And don't forget the dishwashing detergent solution for leak testing. I prefer Dawn, lots of long lasting bubbles you can't miss!

Stuart

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Christophe Guilbert
Sent: Wednesday, March 29, 2017 2:47 PM
To: vanagon@GERRY.VANAGON.COM
Subject: propane copper tubing 3/8" type K , rigid or soft

Hi guys.

I bought a new propane tank for my vanagon and the instruction said that its unlikely that I have to cut the pipe. Well, turns out that I kink the pipe trying to adjust it to the new tank ! :-[

Any way , as a stupid person paying my craving DIY mistakes , I need to rebuild the propane 3/8" copper tubing .

I know its type K for sure but I don't know if the original tubing is soft or hard ?

To me , it is hard but online search said that you can't bend hard copper  . Is that the case ?

What if I use a tubing bender on hard tubing. Should I buy soft tubing ?

Any input (of expert ) will be appreciate.

Thanks

Chris