jgold47
Member
I'm working up a loop for a water filter and need to sweat copper joints between a bunch of different types of connections. Between each (Valve, Union, Male Thread) I've got a short piece of pipe to join the sections. Unfortunatley, I've got very little room to work with, so I need the copper lengths to be minimal. My question is how much 'collar' do I really need to sweat pipes between two fittings? 1/2" 1/4" less?