Sprinkler leaks ordinarilly manifest as soggy spots, low power, or effervescent at heads
https://connernjxm328.scriblorax.com/posts/smart-sprinkler-installment-updating-to-wi-fi-controllers
Sprinkler leaks probably take place as soggy spots, low rigidity, or bubbling at heads. Inspect risers, lateral traces, and valves, then repair cracked fittings to repair equipment functionality.