If you are using copper, why not just solder the joints?
As far as th left over copper pieces, I used hot water with a lot of pressure. Also, After I soldered evrything together, I let my manifold sit in a Bleach/Water solution for a couple of hours, then thoroughly rinse. Good luck and let us know how it comes out. Pics would be great!
You Can Give A Man A Fish and Feed Him For a Day, or You Can Teach Him To Fly Fish And Spoil Him For Life
On DeckWitches Brew WDIPA
Primary Helles Wings MailBock,
Bottled SSBC Club Brew 2013
Kegged Lil' Sparky's Nut Brown Ale, Witches Brew IPA
On Tap Witches Brew IPA