diff --git a/main.py b/main.py
index d710775..192ab51 100644
--- a/main.py
+++ b/main.py
@@ -46,17 +46,17 @@ app.mount("/static", StaticFiles(directory="static"), name="static")
 ## BUFFER CREATION AND HELPER
 # Global object to store the latest data
 latest_data: Dict[str, Any] = {
-    "PU_1": {"Ploop_sp": 0.0, "Qperm_sp": 0.0},
-    "PU_2": {"Ploop_sp": 0.0, "Qperm_sp": 0.0},
-    "PU_3": {"Ploop_sp": 0.0, "Qperm_sp": 0.0},
+    "PU_1": None,
+    "PU_2": None,
+    "PU_3": None,
     "DS": None,
     "PatientSkid": {"QSkid": 0.0},
 }
 
 latest_setpoints: Dict[str, Any] = {
-    "PU_1": {"Ploop_sp": 2.5, "Qperm_sp": 1200},
-    "PU_2": {"Ploop_sp": 2.5, "Qperm_sp": 1200},
-    "PU_3": {"Ploop_sp": 2.5, "Qperm_sp": 1200},
+    "PU_1": {"Ploop_sp": 0.0, "Qperm_sp": 0.0},
+    "PU_2": {"Ploop_sp": 0.0, "Qperm_sp": 0.0},
+    "PU_3": {"Ploop_sp": 0.0, "Qperm_sp": 0.0},
 }
 
 active_PUs: list[int] = []