Faucet Mixer
How I can avoid a leak in a sink faucet?
If it is a single handle faucet that has a cartridge that is easy to replace. remove the handle and remove the cartridge. I do not know what you have so I can not tell you how. Cartridge Take Home Depot, Lowes or a plumbing store and buy a cartridge again. Put back togeather and that's it!
