Sprinkler System Plumbing

This Christmas Tree tops the fire sprinkler system in the Wentworth by the Sea hotel in New Castle NH:

Fire sprinkler system plumbing
Fire sprinkler system plumbing

The long pipe leading around the corner to the left-front riser drains the test valve. The honkin’ big supply pipe stands to the rear of the regulators and valves. You can’t quite see it from here, but those water pressure gauges showed about 180 psi.

The bathroom fixtures had the usual pressure and instant hot water, so there’s complex plumbing inside the walls, too.

Some equipment, you hope just never get used…