Ardunio UNO solve multiple overlapping timer loops - c++

Question

I'm stuck in writing two overlapping loops for switching a pump relay. If the timer "delayPump" ends (LOW) the timer "runnningPump" (HIGH) should start.
i guess some math madness, to be honest this loop is already making me mad, cause it should be easy!!!!
Any clue??
#define pumpSwitch_1 8
int delayPump = 10000; //delay time
int runnningPump = 5000; // running Timer
bool pumpState = LOW;
unsigned long TimerPump = 0;
unsigned long TimerDelay = 0;
void setup() {
pinMode(pumpSwitch_1, OUTPUT);
digitalWrite(pumpSwitch_1, LOW);
TimerPump = millis();
TimerDelay = millis();
}
void loop() {
digitalWrite(pumpSwitch_1, pumpState);
if (pumpState == HIGH){
if((millis() - TimerPump) >= runnningPump){
pumpState = LOW;
TimerPump = millis() + delayPump;
}
}else {
if((millis() - TimerDelay) >= delayPump){
pumpState = HIGH;
TimerDelay = millis() + runnningPump;
}
}
}

Answer 1

I think this is what you need:
You just need a single Timer variable, and each time you toggle the state, set it to current time, i.e. millis().
#define pumpSwitch_1 8
int delayPump = 10000; //delay time
int runnningPump = 5000; // running Timer
bool pumpState = LOW;
unsigned long Timer = 0;
void setup() {
pinMode(pumpSwitch_1, OUTPUT);
digitalWrite(pumpSwitch_1, LOW);
Timer = millis();
}
void loop() {
digitalWrite(pumpSwitch_1, pumpState);
if (pumpState == HIGH) {
if ((millis() - Timer) >= runnningPump) {
pumpState = LOW;
Timer = millis();
}
} else {
if ((millis() - Timer) >= delayPump) {
pumpState = HIGH;
Timer = millis();
}
}
}