Thanks for your swift response Ben, I have a Taylor K2006 kit and will test water later. I was so panicked when I got home I didn't even think to look and see if water was flowing but I am guessing that if the water was not flowing the pump would have been noisy? Could the filter still show zero pressure and have water flowing? There was still some water coming out of the polaris but it seemed weaker than usual. One thing for sure I will NEVER make that mistake again!