Identify the leaking component:
The leak is coming from a hose or fitting itself: replace the leaking part. (Find replacement parts here).
The leak is coming from a connection point between a hose and a fitting: Disconnect the line from the fitting, and check for damages, burrs, or an uneven cut of the line. Note: If mounting brackets are installed too close (less than 2 inches) away from misting tees, it may cause fittings to leak. If the line is undamaged, and the bracket is not installed too close, replace the misting tee. (Find replacement parts here). If the line is damaged at the tip, it can be cut, but the positioning of system components may need to change to compensate for any significant shortening.
If the leak is between the misting tee and the nozzle, check for proper tightening. If tight, remove the nozzle and inspect the condition of the O-ring. O-rings can be replaced (pack of 20 MC46180).