I need to add two more zones onto the existing one zone system. I am thinking extend the main supply pipe and then turn 90 degree to add two more branch supply pipes. I am wondering how far or how close to the existing supply pipe I can add the first new supply pipe.
The return will do the same
The picture was taken 3yrs ago when the system was installing. I added black lines and red lines to show what I am talking about.
Any suggestion about the adding zones in my case?
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