diff --git a/infra/grafana/garage_decke.json b/infra/grafana/garage_decke.json
index 54c020bbe..da1efb170 100644
--- a/infra/grafana/garage_decke.json
+++ b/infra/grafana/garage_decke.json
@@ -9,7 +9,7 @@
   ],
   "timezone": "browser",
   "schemaVersion": 39,
-  "version": 5,
+  "version": 6,
   "refresh": "30s",
   "panels": [
     {
@@ -1206,10 +1206,10 @@
       {
         "current": {
           "selected": true,
-          "text": "3.75",
-          "value": "3.75"
+          "text": "3.5",
+          "value": "3.5"
         },
-        "description": "Brunnen-Volumenstrom in l/min (geschätzt/gemessen, typ. 3–4,5)",
+        "description": "Brunnen-Volumenstrom l/min — gemessen 27.06.2026: 3,5 l/min (vorher geschätzt 3–4,5)",
         "hide": 0,
         "includeAll": false,
         "label": "Brunnen l/min",
@@ -1227,12 +1227,12 @@
             "value": "3.25"
           },
           {
-            "selected": false,
+            "selected": true,
             "text": "3.5",
             "value": "3.5"
           },
           {
-            "selected": true,
+            "selected": false,
             "text": "3.75",
             "value": "3.75"
           },