Faucet is an 18-month old Blanco Grace with side spray. When I turn the faucet on, water drips from somewhere inside the sprayer. I can't see where, exactly, but the water is running down the sprayer's lever, and dripping off the very back end of it, causing a puddle near my grout line. (The lever is black plastic or maybe Bakelite, see link.)

Is something like this an easy fix for the plumber? Or should I have a replacement sprayer on hand when he gets here? This Blanco equipment has been, frankly, total crap. Neither of the soap pumps has ever held suction, despite Blanco sending some replacement tubes. Is Blanco so bad that I should simply buy everything new and start from scratch? My ugly old Moen faucet was 15 years old when I tore it out, and had worked like a champ every day I used it . . .

Thanks for any advice.