Hi everyone, I am starting to design my sprinkler system. The water meter is 5/8", main line size is 3/4" copper. According to this, I can only achieve a maximum of 10GPM. I tapped onto the mainline (in the basement before pressure reducer) to lead to two separate 3/4" PVC line locations (left and right of house). My questions are: 1) If I increase the tapped line size from 3/4" to 1", can I attain the 15 GPM design load? Or am I limited by the 3/4" mainline max 10 GPM? 2) The incoming pressure ...
