C czunit Veteran Member Joined Aug 7, 2015 Messages 542 May 6, 2024 #21 My blocked filters were black with crud. Easy to spot. I would bet that they would sound different, as instead of airflow in the tub you would have the blades stalling on a partial vacuum.
My blocked filters were black with crud. Easy to spot. I would bet that they would sound different, as instead of airflow in the tub you would have the blades stalling on a partial vacuum.