[lbnaz]

Hello, Ed I'm a union pipefitter. Run the header in 3/4" and the drops in 1/2" type L copper. Sweat the joints using Silvabrite lead free solder. Don't forget to clean the pipe and fitting prior to applying flux. Then solder it as you would a water pipe joint. Secure it good on the wall with strut and cush clamps and you'll never have a problem. I'm in Tucson if you want to check mine out. It will hold all the pressure you will be putting in it. Call me if you need imfo or help. Larry.