Running all sprinkler zones
Kind of new to this. Is was checking the gpm of my 4 zone sprinklers that are currently running off of city water. Recently had well drilled in at 65'. My biggest zone is 12.7 gpm . I was looking to get a pump that was in the 20 gpm 40 psi range to run zones each at 15 minutes. I talk to a pump guy and had a 50 gpm 55 psi pump and said that I can take the cam out of a four zone indexing valve and run all zones at once for 30 mins. All zones are under 50 gpm. I know it will take a little bit for water to reach the furthest sprinkler which isn't to far from the pump. I was just wondering if there are any other conflicting things that can go wrong with this idea. Thank you in advanced.