I have a new Aquabot S300 which worked great all summer UNTIL we were hit with super-fine pollen. As I watch the robot roll over a pollen “puddle,” a plume of pollen shoots out the top with the discharge water. I’ve tried to find out whether a finer mesh bag is available, but I’m having no luck even finding replacement bags. Do I really have to pull out my vacuum to get this pollen off my pool floor?