Sprinkler leaks in most cases appear as soggy spots, low pressure, or effervescent at heads
https://sites.google.com/view/aquabrightllc/led-landscape-lighting-retrofits
Sprinkler leaks as a rule occur as soggy spots, low force, or effervescent at heads. Inspect risers, lateral traces, and valves, then restoration cracked fittings to restoration device efficiency.