diff --git a/main.py b/main.py
index e0f7eb0..f7c1d9a 100644
--- a/main.py
+++ b/main.py
@@ -40,35 +40,35 @@ def relay_controller(pin: int, state: str):
         error_print("Unknown state ("+state+") for relay channel "+str(pin))
 
 #ultrasonic
-# try:
-#     def get_water_level():
-#         GPIO.setmode(GPIO.BCM)
-#         GPIO.setwarnings(False)
-#         GPIO_TRIGGER = 24
-#         GPIO_ECHO = 25
-#         GPIO.setup(GPIO_TRIGGER, GPIO.OUT)
-#         GPIO.setup(GPIO_ECHO, GPIO.IN)
-#         GPIO.output(GPIO_TRIGGER, True)
-#         time.sleep(0.00001)
-#         GPIO.output(GPIO_TRIGGER, False)
+try:
+    def get_water_level():
+        GPIO.setmode(GPIO.BCM)
+        GPIO.setwarnings(False)
+        GPIO_TRIGGER = 24
+        GPIO_ECHO = 25
+        GPIO.setup(GPIO_TRIGGER, GPIO.OUT)
+        GPIO.setup(GPIO_ECHO, GPIO.IN)
+        GPIO.output(GPIO_TRIGGER, True)
+        time.sleep(0.00001)
+        GPIO.output(GPIO_TRIGGER, False)
     
-#         startTime = time.time()
-#         StopTime = time.time()
+        startTime = time.time()
+        StopTime = time.time()
     
-#         while GPIO.input(GPIO_ECHO) == 0:
-#             startTime = time.time()
-#         while GPIO.input(GPIO_ECHO) == 1:
-#             StopTime = time.time()
+        while GPIO.input(GPIO_ECHO) == 0:
+            startTime = time.time()
+        while GPIO.input(GPIO_ECHO) == 1:
+            StopTime = time.time()
     
-#         TimeElapsed = StopTime - startTime
-#         distance = (TimeElapsed * 34300) / 2
-#         rounded_distance = int(distance)
-#         return str(rounded_distance)
+        TimeElapsed = StopTime - startTime
+        distance = (TimeElapsed * 34300) / 2
+        rounded_distance = int(distance)
+        return str(rounded_distance)
 
-#     print(get_water_level())
-#     debug_print("Added water level detector")
-# except:
-#     print("Adding water level sensor fail.")
+    print(get_water_level())
+    debug_print("Added water level detector")
+except:
+    print("Adding water level sensor fail.")
 
 #temperature
 try: