pf2e.fyi
From Pathfinder #157: Devil at the Dreaming Palace, which isn't enabled.

Boiling Fountains

HAZARD 2
Stealth +8 (trained) to spot the pressure plates
Description Four pressure plates beneath the floorboards activate dragon-headed fountains on either side of the room, which spray boiling water across the area between them.

Disable DC 21 Thievery (trained) to disable each pressure plate, DC 16 Thievery to jam each fountain, or DC 18 Thievery to deflect a fountain's spray

AC 15; Fort +8, Ref +5
Hardness 8, HP 30 (BT 15); Immunities precision, critical hits

Scalding Spray (fire, water)
Trigger Weight is placed on one of the squares marked with "T" on the map, triggering a pressure plate

Effect The fountains spray boiling water across their own squares and the 10-foot-by-20-foot area between them (marked with dotted lines), dealing 4d6+4 fire damage to any creatures in the area (DC 22 basic Reflex save).
Reset Once a pressure plate has been activated, it must be reset manually.
Pathfinder #157: Devil at the Dreaming PalaceOGL