diff --git a/HANDOFF.md b/HANDOFF.md
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 # Current handoff
 
+## Mandel pressure additions pending — October 24, 2026
+
+User requested development Mandel well/tank/filter differential pressure, tank primary, related alarms/setpoints and an Alarms enable/settings page. Initial Main catalog has 1,171 entries; `tank` search has no matches. No verified new pressure bindings were found; Main readings blank and Global stale_data_codesys = 1 observed. No configuration or operational writes. Asked user where imports landed. See MANDEL-PRESSURE-AUDIT.md; verify current imported catalog before implementing. This request remains unfinished.
+
 Last updated: 2026-10-22 (America/Edmonton)
 
 ## Arco Poultry Barn 4 registers — October 22, 2026
diff --git a/MANDEL-PRESSURE-AUDIT.md b/MANDEL-PRESSURE-AUDIT.md
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+# Mandel pressure import check — October 24, 2026
+
+Target: https://dev.atomhmi.com/site_mandel/.
+
+User requests well, tank (primary), and filter differential pressure (well minus tank), associated new alarms/setpoints, and an Alarms page with enable settings.
+
+Read repository AGENTS.md, PROJECT.md, HANDOFF.md, MANDEL-BUILD.md and MANDEL-SETTINGS.md, and current cloud knowledge base/settings guide before edits.
+
+Observed through Manage Registers: Main catalog contains 1,171 definitions. Search `tank` returns no matching records. Pressure searches inspected so far show existing air compressor and pressure washer families; no verified well/tank/filter differential pressure mapping was established. The `well` search contains 482 matches, including existing well flow and sequence definitions. Global has 13 entries and no well matches. Global `stale_data_codesys` displayed 1; Main register values and overview readouts were blank. This does not establish the communication failure cause.
+
+Configure Pages lists Air Compressor, Chicken Coop, Device Status, Main, Pressure Washer, Ventilation, Water Usage, Well; no existing Alarms page.
+
+No configuration or PLC values changed. New pressure bindings, alarms and page remain pending confirmation of where the new imports landed. Do not fabricate tags or thresholds. Next: verify refreshed imported catalog/device, inspect exact pressure outputs and enable/setpoint semantics, then implement and reload-verify requested pages and alarm definitions.