THIS IS A SAND FILTER, BUT IT PLUGS UP AND YOU HAVE TO TEAR IT APART AND CLEAN IT ABOUT EVERY 7- 10 DAYS AS I DO PUMP A LOT OF FINE SAND. I HAVE THE FILTER SET TO BLOW OFF EVERY 15 MINUTES THUS IT WEARS OUT THE VALVE IN THE BOTTOM OF THIS PART. I HAVE TO REPLACE THIS PART EVERY OTHER YEAR. IT IS EXPENSIVE AND NOT A GOOD DEAL, ALSO THIS FILTER IS USED FOR LAWN WATERING ONLY.