Updated Design Pressure Dialog Box (2022)
You may have noticed a change in our dialog box for selecting a design pressure when adding or editing irrigation heads. Please note that although the changes to the look of this dialog box are extensive (see the image to the right), it functions exactly the same as before.
The extra information you see in this dialog box is only there to help clarify the available nozzles, along with their available radii and flow rates, for the design pressure you choose for the selected head.
Here's what the old version of this dialog box looked like.
You'd choose a design pressure rates for the head by selecting one of the radio buttons (example: 30 for 30 PSI). If a pressure rate wasn't available for that head model, the corresponding radio button was grayed out.
If desired, you'd select a radius percentage for the head using the Radius % slide on the right side of the dialog box.
In the new version, only the available design pressures for the selected head are displayed as selectable radio buttons.
As before the update, the only selections you'll need to make are of the design pressure and, if needed, radius reduction. After you pick a pressure, you'll see a scrollable window showing each available nozzle at the pressure you selected, along with the radius and flow rate for that nozzle at the selected pressure rate.
As mentioned above, the columns and rows in the scrollable window are purely informational. You don't need to make any selections here – it's just a display of what's available for each nozzle.
The radius percentage slider is now titled Radius Reduction but functions exactly the same as it did before: If desired, you can use the slider to decrease the radius below 100%. As you change the radius, you'll see the radius and flow rates change for each available nozzle.
Also as before the update, all available nozzles for your selected design pressure will be added to your project after you've made your selection and clicked OK. You don't need to (nor are you able to) select a nozzle, radius, or flow rate at this point.