diff --git a/src/specificClass.js b/src/specificClass.js
index ede5709..c39e01d 100644
--- a/src/specificClass.js
+++ b/src/specificClass.js
@@ -96,6 +96,10 @@ class Machine {
     this.measurements.type('temperature').variant('measured').position('atEquipment').value(15).unit('C');
     //assume standard atm pressure is at sea level
     this.measurements.type('atmPressure').variant('measured').position('atEquipment').value(101325).unit('Pa');
+    //populate min and max
+    const flowunit = this.config.general.unit;
+    this.measurements.type('flow').variant('predicted').position('max').value(this.predictFlow.currentFxyYMax, Date.now() , flowunit) 
+    this.measurements.type('flow').variant('predicted').position('min').value(this.predictFlow.currentFxyYMin).unit(this.config.general.unit);
   }
 
   _updateState(){
@@ -344,15 +348,15 @@ _callMeasurementHandler(measurementType, value, position, context) {
   calcFlow(x) {
     if(this.hasCurve) {
       if (!this._isOperationalState()) {
-        this.measurements.type("flow").variant("predicted").position("downstream").value(0);
-        this.measurements.type("flow").variant("predicted").position("atEquipment").value(0);
+        this.measurements.type("flow").variant("predicted").position("downstream").value(0,Date.now(),this.config.general.unit);
+        this.measurements.type("flow").variant("predicted").position("atEquipment").value(0,Date.now(),this.config.general.unit);
         this.logger.debug(`Machine is not operational. Setting predicted flow to 0.`);
         return 0;
       }
 
       const cFlow = this.predictFlow.y(x);
-      this.measurements.type("flow").variant("predicted").position("downstream").value(cFlow);
-      this.measurements.type("flow").variant("predicted").position("atEquipment").value(cFlow);
+      this.measurements.type("flow").variant("predicted").position("downstream").value(cFlow,Date.now(),this.config.general.unit);
+      this.measurements.type("flow").variant("predicted").position("atEquipment").value(cFlow,Date.now(),this.config.general.unit);
       //this.logger.debug(`Calculated flow: ${cFlow} for pressure: ${this.getMeasuredPressure()} and position: ${x}`);
       return cFlow;
     }
@@ -479,8 +483,8 @@ _callMeasurementHandler(measurementType, value, position, context) {
           //update the distance from peak
           this.calcDistanceBEP(efficiency,cog,minEfficiency);
           //place min and max flow capabilities in containerthis.predictFlow.currentFxyYMax - this.predictFlow.currentFxyYMin
-          this.measurements.type('flow').variant('predicted').variant('max').value(this.predictFlow.currentFxyYMax).unit(this.config.general.unit);
-          this.measurements.type('flow').variant('predicted').variant('min').value(this.predictFlow.currentFxyYMin).unit(this.config.general.unit);
+          this.measurements.type('flow').variant('predicted').position('max').value(this.predictFlow.currentFxyYMax).unit(this.config.general.unit);
+          this.measurements.type('flow').variant('predicted').position('min').value(this.predictFlow.currentFxyYMin).unit(this.config.general.unit);
     return 0;
   }
 
@@ -694,7 +698,9 @@ _callMeasurementHandler(measurementType, value, position, context) {
     const pressureDiff = this.measurements.type('pressure').variant('measured').difference('Pa');
     const g = gravity.getStandardGravity();
     const temp = this.measurements.type('temperature').variant('measured').position('atEquipment').getCurrentValue('K');
-    const atmPressure = this.measurements.type('atmPressure').variant('measured').position('atEquipment').getCurrentValue('Pa');    
+    const atmPressure = this.measurements.type('atmPressure').variant('measured').position('atEquipment').getCurrentValue('Pa');  
+    
+    console.log(`--------------------calc efficiency : Pressure diff:${pressureDiff},${temp}, ${g} `);
     const rho = coolprop.PropsSI('D', 'T', temp, 'P', atmPressure, 'WasteWater');
     
 
@@ -765,15 +771,8 @@ _callMeasurementHandler(measurementType, value, position, context) {
   getOutput() {
 
     // Improved output object generation
-    const output = {};
 
-    Object.entries(this.measurements.measurements).forEach(([type, variants]) => {
-      Object.entries(variants).forEach(([variant, positions]) => {
-        Object.entries(positions).forEach(([position, measurement]) => {
-          output[`${type}.${variant}.${position}`] = measurement.getCurrentValue();
-        });
-      });
-    });
+    const output = this.measurements.getFlattenedOutput();
 
     //fill in the rest of the output object
     output["state"] = this.state.getCurrentState();