Automated Water Pourer/Refiller

/*
Water replenisher contraption code. Written by Ishan Shastri, 
in Ajax, Canada, L1T3S8, on 10/02/2018
language = c/c++
*/

#include <Servo.h>
Servo servo;
int button = 10;    // Button can be used to allow contraption to function(optional)
void setup() {   
  // put your setup code here, to run once:

servo.attach(8);
servo.write(0);
delay(3000);            
pinMode(button, INPUT_PULLUP);
pinMode(A5, INPUT);
Serial.begin(9600);
pinMode(LED_BUILTIN, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
Serial.print("Water sensor = ");
Serial.println(analogRead(A5));
delay(2000);

if(digitalRead(button) == LOW){
  if(analogRead(A5) < 330){
    servo.write(90);
      
    digitalWrite(LED_BUILTIN, HIGH);
  }else{
    servo.write(0);
    
    digitalWrite(LED_BUILTIN, LOW);
    
  }
}
}