diff --git a/src/controllers/tanksController.js b/src/controllers/tanksController.js
index c6d54b23..7414b0f0 100644
--- a/src/controllers/tanksController.js
+++ b/src/controllers/tanksController.js
@@ -6217,61 +6217,61 @@ async function processIotData(hw_Id, data) {
       console.log(`🚰 Tank [${tankhardwareId}] - Level: ${tankHeight}, Calculated Water Level: ${waterLevel}`);
       const now = moment().tz('Asia/Kolkata');
 
-      // if (tankHeight <= 0) {
-      //   // Case 1: First time signal is lost
-      //   if (
-      //     existingTank.slave_status !== "signal_lost1" &&
-      //     existingTank.slave_status !== "not_working"
-      //   ) {
-      //     existingTank.slave_status = "signal_lost1";
-      //     existingTank.slave_disconnected_time = now.format('DD-MMM-YYYY - HH:mm:ss');
-      //     await existingTank.save();
+      if (tankHeight <= 0) {
+        // Case 1: First time signal is lost
+        if (
+          existingTank.slave_status !== "signal_lost1" &&
+          existingTank.slave_status !== "not_working1"
+        ) {
+          existingTank.slave_status = "signal_lost1";
+          existingTank.slave_disconnected_time = now.format('DD-MMM-YYYY - HH:mm:ss');
+          await existingTank.save();
       
-      //     console.log(`⚠️ Signal lost for tank [${tankhardwareId}] at ${existingTank.slave_disconnected_time}`);
-      //     return; // Important: do not continue in this cycle
+          console.log(`⚠️ Signal lost for tank [${tankhardwareId}] at ${existingTank.slave_disconnected_time}`);
+          return; // Important: do not continue in this cycle
       
-      //   } else if (existingTank.slave_status === "signal_lost1") {
-      //     if (!existingTank.slave_disconnected_time) {
-      //       console.log(`❗ Missing slave_disconnected_time despite signal_lost1 for tank [${tankhardwareId}]`);
-      //       return;
-      //     }
+        } else if (existingTank.slave_status === "signal_lost1") {
+          if (!existingTank.slave_disconnected_time) {
+            console.log(`❗ Missing slave_disconnected_time despite signal_lost1 for tank [${tankhardwareId}]`);
+            return;
+          }
       
-      //     const lostTime = moment(existingTank.slave_disconnected_time, 'DD-MMM-YYYY - HH:mm:ss');
-      //     const minutesElapsed = now.diff(lostTime, 'minutes');
+          const lostTime = moment(existingTank.slave_disconnected_time, 'DD-MMM-YYYY - HH:mm:ss');
+          const minutesElapsed = now.diff(lostTime, 'minutes');
       
-      //     if (minutesElapsed >= 15) {
-      //       existingTank.slave_status = "not_working";
-      //       existingTank.slave_disconnected_time = now.format('DD-MMM-YYYY - HH:mm:ss');
-      //       await existingTank.save();
+          if (minutesElapsed >= 15) {
+            existingTank.slave_status = "not_working1";
+            existingTank.slave_disconnected_time = now.format('DD-MMM-YYYY - HH:mm:ss');
+            await existingTank.save();
       
-      //       console.log(`❌ Slave marked as not_working for tank [${tankhardwareId}] at ${existingTank.slave_disconnected_time}`);
+            console.log(`❌ Slave marked as not_working for tank [${tankhardwareId}] at ${existingTank.slave_disconnected_time}`);
       
-      //       // Update connected output tanks
-      //       for (const outputConnection of existingTank.connections.outputConnections) {
-      //         const linkedTank = await Tank.findOne({
-      //           customerId,
-      //           tankName: outputConnection.outputConnections,
-      //           tankLocation: outputConnection.output_type
-      //         });
+            // Update connected output tanks
+            for (const outputConnection of existingTank.connections.outputConnections) {
+              const linkedTank = await Tank.findOne({
+                customerId,
+                tankName: outputConnection.outputConnections,
+                tankLocation: outputConnection.output_type
+              });
       
-      //         if (linkedTank) {
-      //           for (const inputConnection of linkedTank.connections.inputConnections) {
-      //             if (inputConnection.inputConnections === tank_name) {
-      //               inputConnection.slave_status = "not_working";
-      //               await linkedTank.save();
-      //               console.log(`🔗 Linked tank [${linkedTank.tankName}] inputConnection updated to not_working`);
-      //             }
-      //           }
-      //         }
-      //       }
+              if (linkedTank) {
+                for (const inputConnection of linkedTank.connections.inputConnections) {
+                  if (inputConnection.inputConnections === tank_name) {
+                    inputConnection.slave_status = "not_working1";
+                    await linkedTank.save();
+                    console.log(`🔗 Linked tank [${linkedTank.tankName}] inputConnection updated to not_working`);
+                  }
+                }
+              }
+            }
       
-      //     } else {
-      //       console.log(`⏳ Still within 15-minute grace: ${minutesElapsed} minutes elapsed for tank [${tankhardwareId}]`);
-      //     }
-      //   } else {
-      //     console.log(`⏩ Tank [${tankhardwareId}] already marked as ${existingTank.slave_status}, skipping update.`);
-      //   }
-      // }
+          } else {
+            console.log(`⏳ Still within 15-minute grace: ${minutesElapsed} minutes elapsed for tank [${tankhardwareId}]`);
+          }
+        } else {
+          console.log(`⏩ Tank [${tankhardwareId}] already marked as ${existingTank.slave_status}, skipping update.`);
+        }
+      }
       
       
       
@@ -6280,8 +6280,8 @@ async function processIotData(hw_Id, data) {
 
       if (tankHeight > 0 && waterLevel >= 0) {
         existingTank.waterlevel = waterLevel;
-        // existingTank.slave_status = "working";
-        // existingTank.slave_disconnected_time = null;
+        existingTank.slave_status = "working";
+        existingTank.slave_disconnected_time = null;
         await existingTank.save();
 
         for (const outputConnection of existingTank.connections.outputConnections) {
@@ -6290,7 +6290,7 @@ async function processIotData(hw_Id, data) {
             for (const inputConnection of linkedTank.connections.inputConnections) {
               if (inputConnection.inputConnections === tank_name) {
                 inputConnection.water_level = waterLevel;
-              `  // inputConnection. slave_status = "working";`
+                inputConnection. slave_status = "working";
                 await linkedTank.save();
               }
             }