I purchased a house with 2 zones and would like to add a third. The issue I have is that the new zone will be on the opposite side of a 15-20' driveway from the current valves and main. There is already a zone on that far side, so I'm wondering if I can eliminate the the current valve for that zone and move it to the other side of the driveway, while at the same time branching off the third zone from the new valve location. Would spacing valves 15-20' apart create an issue? It looks like the line running under the driveway is 3/4 - 1". For reference, I made some fine art.
Current Placement
Proposed Placement
TIA
Craig