Pump and Valve test

int sValve_0 = 1;
int sValve_1 = 2;
int sValve_2 = 3;
int pump = 8;

void setup() {

  Serial.begin(9600);

  pinMode(sValve_0, OUTPUT);
  pinMode(sValve_1, OUTPUT);
  pinMode(sValve_2, OUTPUT);
  pinMode(pump, OUTPUT);                                                                                                                                                                                                                
  
}
  

void loop() {

    digitalWrite(sValve_0, LOW);
    Serial.print("0 on");
    Serial.println();
    digitalWrite(sValve_0, HIGH);
    delay(500);
    digitalWrite(sValve_0, LOW);
    delay(500);

    digitalWrite(sValve_1, LOW);
    Serial.print("1 on");
    Serial.println();
    digitalWrite(sValve_1, HIGH);
    delay(500);
    digitalWrite(sValve_1, LOW);
    delay(500);

    digitalWrite(sValve_2, LOW);
    Serial.print("2 on");
    Serial.println();
    digitalWrite(sValve_2, HIGH);
    delay(500);
    digitalWrite(sValve_2, LOW);
    delay(500);

    digitalWrite(pump, LOW);
    Serial.print("pump on");
    Serial.println();
    digitalWrite(pump, HIGH);
    delay(500);
    digitalWrite(pump, LOW);
    delay(500);
 
}