Waste Segregator!

#include <Servo.h>
#include <LiquidCrystal.h>
Servo myservo;  
int pos = 0;  
const int trigPin1 = 9;
const int echoPin1 = 8;
const int trigPin2 = 7;
const int echoPin2 = 6;
const int led = 13;
int sensorPin = A0; 
int sensorValue;  
int limit = 950; 
const int rs = 12, en = 11, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
float moisture;
bool wet = false, obs2 = false;

void setup() 
{
  lcd.begin(16, 2);
  lcd.print("Waste Segregator");
  myservo.attach(10);
  pinMode(trigPin1, OUTPUT);
  pinMode(echoPin1, INPUT); 
  pinMode(trigPin2, OUTPUT);
  pinMode(echoPin2, INPUT);
  pinMode(led, OUTPUT);
  myservo.write(pos);
}

// UV Obstacle Sensing Function
bool obstacle(int trigPin, int echoPin, String s1){
  
  //for(int i=0;i<5;i++){
    //UV code
    long duration, distance;
    digitalWrite(trigPin, HIGH);
    delayMicroseconds(1000);
    digitalWrite(trigPin, LOW);
    duration = pulseIn(echoPin, HIGH);
    distance = (duration/2) / 29.1;
    Serial.print(distance);
    Serial.println("CM"+s1);
    delay(10);
    
    if(distance<=12) return true;
    else return false;
  //}
  
}

// Soil Moisture Sensor Code
bool wetSense(){
  
  for(int i = 0; i < 8 ; i++) {
       sensorValue = analogRead(sensorPin); 
       moisture = (100 - (sensorValue/1023.0)*100);
       Serial.println("Analog Value : ");
       Serial.println(sensorValue);
       Serial.println("Moisture : ");
       Serial.print(moisture);
       Serial.println("%");
       if(sensorValue < limit){
          return true;
       }
       delay(500);
  }
  return false;
}

//LCD Display

void printer(String s){

  lcd.setCursor(0, 1);
  lcd.print(s);
  delay(2000);
  
}

void loop() 
{
  Serial.begin(9600);
  printer(" Monitoring... ");
  if(obstacle(trigPin1, echoPin1,"one") == true){

      delay(11500);
      for(int i = 0 ; i < 5 ; i++ ) { 
        obs2 = obstacle(trigPin2, echoPin2,"two");
        delay(200);
        if(obs2 == true) {
          delay(5300);
          wet = (wetSense());
          break;
        }
      }

      if(obs2==true && wet==true){
        
        myservo.write(pos+190);
        printer("   Wet  Waste   ");        
      }
      else if(obs2==true && wet==false){
        myservo.write(pos);       
        printer("   Dry  Waste   ");
        myservo.write(pos);
      }
      else if(obs2==false)
        printer(" Magnetic Waste ");
        
      delay(2000);
  }
  delay(1000);