i have a filstar xp3, with the spraybar setup...about every 10 seconds or so the spraybar squirts out a large bunch of bubbles that is audible from across the room. and in the meantime, it squirts out a bunch of small bubbles in the water that make my water look like it has specks in it (even though up close you can see that they are tiny bubbles)...does anyone know what might be causing this?