**EQP102 / Utility Modules r2 · 2026-09-07 UTC · Equipment and Build Designer · First Insulation and Siphon placement proposals for the Tram return case; catalogue remains in review.**
+
**EQP102 / Utility Modules r3 · 2026-09-07 UTC · Equipment and Build Designer · Named first Insulation/Siphon offers and shared-rule basin persistence mirrored; catalogue remains in review.**
All entries use the proposed [Inventory and Charge contract](/Hold%20The%20Flood/Mechanics/Inventory%20And%20Charge), especially its links, collection priority, field handling and transfer limits. [Build Paths](/Hold%20The%20Flood/Equipment/Build%20Paths#acquisition-and-advancement) owns discovery, recipe and workshop acquisition. Numerical values are provisional. “Retain” means carry forward a source proposal, not owner approval. Space is measured in rack cells; no item has an implicit free battery.
@@ 64,7 64,7 @@
- **Trigger / effect / target:** link one battery at shelter; at a visible compatible pump socket beside a channel, interact to deploy. Commit five stored charge for a ten-second drain operation. A compatible socket has a mapped lower outfall and capacity to empty its specified channel; water is moved along that authored route, not deleted or sent through walls. Campaign must name the affected channel/outfall and resulting water levels. Reject invalid sockets or less than five charge without cost.
- **Space / resource cost:** one cell for the pump plus one for its linked battery. Deployment keeps the harness cell occupied. The committed five units power the operation; a bank with ten retains five after commitment, and becomes eligible for pickups under the ordinary priority rule. There is no added passive generator. Only one operation can run per installed pump.
- **Information:** show the drain region, outfall, ten-second progress, committed charge and observed doors/beacons that will lose conduction. The local drain is a live experiment; its preview exposes only already-observed connections. At completion dry ground reads through texture/motion and labels as well as tint.
-
- **Restrictions:** the player remains beside the pump to operate, with primary fire suspended; leaving/interruption stops it and loses committed fuel. For a first specification, intermediate flow is visible but the channel crosses to the dry gameplay state only on completion, avoiding an undefined partial-level topology. A refill source shown on that district’s authored water rules can wet it again. The pump never draws signal, directly controls a crowd, damages a target, or preserves a dry state across expeditions. Repeating a drain costs another five. No placement on arbitrary unbounded water and no free charge recovery when retrieving.
+
- **Restrictions:** the player remains beside the pump to operate, with primary fire suspended; leaving/interruption stops it and loses committed fuel. For a first specification, intermediate flow is visible but the channel crosses to the dry gameplay state only on completion, avoiding an undefined partial-level topology. A refill source shown on that district’s authored water rules can wet it again. The pump never draws signal, directly controls a crowd or damages a target. **Persistence correction against shared 8644ea §6:** the carried pump/deployment resets, but a completed basin-level change follows the ordinary persistent hydraulic state until its authored refill/outcome changes it; withdrawing r1/r2's blanket “no dry state across expeditions.” The item creates neither an automatic overnight refill nor a permanently dry basin. Repeating a drain after a physical refill costs another five. No placement on arbitrary unbounded water and no free charge recovery when retrieving.
- **Concrete combination / weakness:** drain the Lock Flight’s Head basin for a salvage approach; its powered door closes when the conductive water is removed. Choose to drain a different compatible access channel, refill with the free lock levers, or keep water and use Coil instead. Insulation protects the hot approach before draining; Rivet Driver covers a straight lane before operating; primary attacks are suspended during the ten-second drain. This action commitment is an explicit proposal to Combat, not a free secondary attack.
- **Acquisition / keep reason:** first optional Lock Flight pump-service cache accessible by ordinary lock levers and the direct road; inspect for recipe. Then machinery offers or workshop selection. A full environmental drain route exists without the item; carried pumping buys a local option with an energy/exposure price. The first battery and Insulation remain useful partners. This pump never upgrades the existing Coil out of its job.
