I’m thinking of getting aa Aquamaxx AF-1 rollermat or a Bubble Magus Filter Rollermat Instead of a filter sock, which I currently use. Does anyone know if there is any smell from the expended filter roll while it’s still wet? The Clarsea filter rollermat says that they make their rollermat filter with a chemical impregnated into the cloth. The others don’t mention this. Does anyone use any of these systems and can let me know? Thanks everyone.