I have a kitchen fawcet that is turned on by raising a small attached lever and rotating to get hot or cold. Problem is it is becoming harder and hared to raise or lower the lever. I tried to apply silicone lube to fawcet but can`t figure out how to remove the plunger to lubricate it. Only name mark I can find on it is V*VV*JELL. Any help anyone or must I just throw it away and buy a new one? Russ