My bathroom mixer is getting really stiff to turn after less than a year. It's an Ikea one http://www.ikea.com/gb/en/products/washstands-taps/taps/ensen-wash-basin-mixer-tap-with-strainer-chrome-plated-art-60281375/
Since it's a pain to take it off, & drive 90 miles to return it, I would...