   SensorPtr = &Mux1Temp3;
   stat = sensor_read (SensorPtr);
 
+    // Enable Mux Channel 2
+  stat = PCA9548A_70.control_write(PCA9548A_PORT_2_ENABLE);
+  if (SUCCESS != stat)
+  {
+    text_ptr = (PCA9548A_70.status_text[PCA9548A_70.error.error_val]);
+    Serial.printf("mux2 control write failed with return of 0x%.2X: %s\r\n", PCA9548A_70.error.error_val, text_ptr);
+    delay(dtime/2); // don't blast repeat failures too quickly
+  }
+  else
+  {
+    stat = PCA9548A_70.control_read(&control_read_val);
+    if (verbose) Serial.printf("OK control=0x%.2X\r\n", control_read_val);
+  }
+
+  // ------------------------------
+  SensorPtr = &Mux2Temp1;   
+  stat = sensor_read (SensorPtr);
+
+  SensorPtr = &Mux2Temp2;
+  stat = sensor_read (SensorPtr);
+
+  SensorPtr = &Mux2Temp3;
+  stat = sensor_read (SensorPtr);
 
 
   Serial.println();

  SensorPtr = &Mux0Temp1;   // EC Top
  stat = sensor_read (SensorPtr);


  SensorPtr = &Mux0Temp2;   // EC Bot
  stat = sensor_read (SensorPtr);




  // ------------------------------
  SensorPtr = &Mux1Temp1;   
  stat = sensor_read (SensorPtr);

