Just a quick 1...I'm installing a jojo and I have ¾ supply which I'll be feeding the jojo with...but I was thinking can't I run the ¾ pipe for about 2 meters and than upstream the pipe (increase the diameter of the pipe to a 32mm pipe hpde and than back into a ¾ copper pipe .
Why I'm asking is would this allow more water to flow through that ±10 meters of pipe? or should I rather take a ¾ pipe and upstream it to a 25mm pipe and feed the jojo.