diff --git a/Core/Src/main.cpp b/Core/Src/main.cpp
index 93e21ce..679bc56 100644
--- a/Core/Src/main.cpp
+++ b/Core/Src/main.cpp
@@ -194,6 +194,8 @@ int main(void) {
 
     //Instantiate Input and Output modules
     io::PressureChannel tankLevel0(&hadc1, MPWR0_GPIO_Port, MPWR0_Pin, 50);
+    tankLevel0.LinkCalibConfig(globalConfig.TankCalibLow.getLink(), globalConfig.TankCalibHigh.getLink());
+
     io::GPIChannel refillBlocker0(GPI0_GPIO_Port, GPI0_Pin);
     io::RelayChannel tankPump(OCHAN0_GPIO_Port, OCHAN0_Pin, true, io::RelayChannel::state::OFF);
     io::RelayChannel refillPump(OCHAN1_GPIO_Port, OCHAN1_Pin, false, io::RelayChannel::state::OFF);
@@ -214,19 +216,24 @@ int main(void) {
 
     while (1) {
 
+        display.LCDSetBacklight(false);
         display.LCDSetCursor(0,0);
         display.LCDSendCString(const_cast<char *>(std::string("Tank: " + std::to_string(tankLevel0.getPercent()) + " %").c_str()));
 
         display.LCDSetCursor(0, 1);
         if(tankLevel0.getPercent() < globalConfig.TankMinLevel.getValue()) {
-            display.LCDSendCString(const_cast<char *>(std::string("Tank Wassermangel").c_str()));
+            display.LCDSendCString(const_cast<char *>(std::string("Tank Wassermangel   ").c_str()));
         } else {
-            display.LCDSendCString(const_cast<char *>(std::string("Tank Normal").c_str()));
+            display.LCDSendCString(const_cast<char *>(std::string("Tank Normal         ").c_str()));
         }
 
+        display.LCDSetCursor(0,2);
+
+
 
 
         if(rot_button) {
+            display.LCDSetBacklight(true);
             rot_button = false;
             last_menu_retrigger = HAL_GetTick();
             while(true) {
diff --git a/Middlewares/floatpump/Inc/PressureChannel.h b/Middlewares/floatpump/Inc/PressureChannel.h
index 0e2c58a..f30b711 100644
--- a/Middlewares/floatpump/Inc/PressureChannel.h
+++ b/Middlewares/floatpump/Inc/PressureChannel.h
@@ -30,13 +30,15 @@ namespace floatpump::io {
 
         void calibrateHigh();
 
+        void LinkCalibConfig(uint16_t *low, uint16_t *high);
+
     private:
         const uint16_t m_avg_size = 50;
         const uint16_t m_avg_delay = 10;
         const uint16_t m_cooldown = 500;
 
-        uint16_t m_lowcalib = 0;
-        uint16_t m_highcalib = 65535;
+        uint16_t *m_lowcalib = new uint16_t(0);
+        uint16_t *m_highcalib = new uint16_t(65535);
 
         uint16_t m_raw = 0;
         int8_t m_percent = 0;
diff --git a/Middlewares/floatpump/Src/PressureChannel.cpp b/Middlewares/floatpump/Src/PressureChannel.cpp
index 8b3ec7e..c4c9b0b 100644
--- a/Middlewares/floatpump/Src/PressureChannel.cpp
+++ b/Middlewares/floatpump/Src/PressureChannel.cpp
@@ -25,7 +25,7 @@ namespace floatpump::io {
 
         m_raw = average / m_avg_size;
 
-        m_percent = (int8_t) (((m_raw - m_lowcalib) * 100) / (m_highcalib - m_lowcalib));
+        m_percent = (int8_t) (((m_raw - *m_lowcalib) * 100) / (*m_highcalib - *m_lowcalib));
 
     }
 
@@ -42,20 +42,25 @@ namespace floatpump::io {
     }
 
     void PressureChannel::calibrateManualLow(uint16_t low) {
-        m_lowcalib = low;
+        *m_lowcalib = low;
     }
 
     void PressureChannel::calibrateManualHigh(uint16_t high) {
-        m_highcalib = high;
+        *m_highcalib = high;
     }
 
     void PressureChannel::calibrateLow() {
         poll();
-        m_lowcalib = m_raw;
+        *m_lowcalib = m_raw;
     }
 
     void PressureChannel::calibrateHigh() {
         poll();
-        m_highcalib = m_raw;
+        *m_highcalib = m_raw;
+    }
+
+    void PressureChannel::LinkCalibConfig(uint16_t *low, uint16_t *high) {
+        m_lowcalib = low;
+        m_highcalib = high;
     }
 }
\ No newline at end of file