Using the Wizard to Calculate PR from GPH

Can someone please tell me if I am doing this right?

Making sure all other water is off in my house and the water meter is stopped - I then turned on one of my larger drip zones for 10 minutes using the Rachio app. Measured 55.7 gallons used in 10 minutes. The Wizard tells me that is a PR of 536.1125 - is that really the number I use to create a custom nozzle for this zone? Just seems so incredibly out of whack with all of the other numbers I am seeing - I am thinking I must be doing something wrong… ?

You aren’t doing anything wrong. That Wizard doesn’t work for your kind of setup. Check out this post – I think it will help you alot.