Lesson 9.1 – Testing The System
At this point, the installation is complete. The system must now be tested to ensure all fittings are leak proof, sprinklers are properly installed and spraying correctly on the panel.
IMPORTANT – the system must be tested after installation. Small adjustments will need to be made at this time to ensure the system will operate properly.
To test the system, we need to run the system manually.
First, make sure the main valve in the control box is in the closed position. Then turn on the garden faucet to the full ON position. The valve on the Y-fitting that leads to the control box should be opened, and the other valve should be closed (see 1st photo below). The main valve in the control box must then be opened as shown in the 2nd photo below.
If your system is 25 sprinklers or less, turn the green dial on the control valve from “Auto” to open (see 3rd photo below). For larger systems, you have a master valve which first needs to open before you open the control valves to the individual sprinkler sections. You may hear some knocking in the pipes as the water fills the lines. This is normal. It may also take a minute or two for the system to reach full pressure before inspection.
During inspection, keep in mind that the roof may now be slippery and take necessary precautions. If some part of the system does not appear to be working properly, check the troubleshooting section for measures to correct the problem.
IMPORTANT: To turn the system off, turn the green dial on the valve from “open” all the way to “close” and then back to “auto”. Make it a habit to always leave the dial on “auto.” The system will not run automatically by itself unless the dial is in “auto.”