pf2e.fyi
From Pathfinder Society Scenario #1-00: Origin of the Open Road, which isn't enabled.

Acid Spray Fountain

COMPLEX HAZARD 6
Stealth +16 (expert) to notice the concealed fountain
Description A concealed acid fountain with three nozzles is connected to eight pressure pads in the room.

Disable DC 26 Thievery (expert) on the fountain stops it from spraying acid, or DC 22 Thievery (expert) disables one of the nozzles and reduces the number of actions the trap can take by 1. When the number of actions is reduced to 0, the fountain is disabled.

AC 24; Fort +14, Ref +13
Hardness 14, HP 56 (BT 28); Immunities acid, critical hits, precision

Fountain Activation
Trigger A creature steps on a pressure pad.

Effect The trap makes an acid spray Strike against a random creature in the room, although the initial damage is reduced by 8 as the acid eats through the concealing boxes. The trap then rolls initiative.
Melee Acid Spray +14, Damage 2d10+8 acid plus 2d4 acid

No multiple attack penalty

Routine (3 actions) On its initiative, the trap makes an acid spray Strike against a random creature in the room for each of its actions.
Reset The trap deactivates after 1 minute, at which point its acid reservoir is empty. It can't reactivate until this reservoir is refilled.
Pathfinder Society Scenario #1-00: Origin of the Open RoadOGL