Here in Brisbane, the Council use soft solder joints underground, the same tin rubbish used by sylvan
However most trades men here use 5% to 15% silver solder, which wil out last all of us.
All advice is given with-out seeing the job, and hence all advice MUST be taken as advice with limited knowledge on the exact situation. NO responsibility can or
will be taken. And yes, I am a licensed plumber with my own business in Brisbane Australia