You may notice in the Ops Center that Flow Vision is not tracking flow for some of your irrigations. There are several reasons why a valve might not be tracking flow. We’ll start with the most obvious (and most likely) causes and work toward the less common ones.
Ensure there is water flowing to the valve, and there is sufficient pressure. A minimum 15psi is required
If not, check if there are ball valves feeding your Lumo valve and ensure they are open
Check that the dome is seated flush over the flow sensor
Remove the dome and wetware to inspect the flow impeller
Check that the impeller fully seated. If the magnets are off by a millimeter, they will be unable to sense flow
Check for debris that may be impeding flow
Check the impeller spin. If it doesn't spin freely, clean or replace the impeller
Check to see if there is an impeller spacer
If there is already a spacer in the impeller chamber, does it have cross bars? If so, these can push on the impeller cone, slowing or stopping the impeller from freely spinning. Remove the cross bars from the spacer and replace it in the impeller chamber.