Check for leaks around the riser and sprinkler head. If there’s a leak, turn off the system and tighten the sprinkler head or reapply thread seal tape for a snugger fit.

Either the sprinkler head has broken or, more likely, the riser has broken. The riser connects the PVC pipe to the sprinkler head. Risers are short lengths of pipe that have male threads on each end.

NYC fire protection firm works around school calendar and LPC mandates; finishes first part of multi-year installation with building risers and sprinkler heads. Landmarks criteria can be ...

Either the sprinkler head has broken or, more likely, the riser has broken. The riser connects the PVC pipe to the sprinkler head. Risers are short lengths of pipe that have male threads on each end.