Even if only one handle is leaky, it might be worth your time to go ahead and replace the parts in both of them. If they’re both the same age and one of them is leaking, it’s only a matter of time before the other one starts leaking as well. [3] X Expert Source Patrick JohnsHome Improvement Specialist Expert Interview. 5 April 2022.
If you can’t figure out how to get the handles apart, search the brand name of the faucet to find the instruction guide online. It’ll tell you what you need to do. [7] X Research source Cover polished surfaces with masking tape before you take them off. [8] X Research source
Some cartridges require a special cartridge-removal tool. If you’re trying to get it out with pliers and having a hard time, search your faucet brand on the internet to find an instruction guide. If a special tool is needed, it’ll tell you.
If you notice dirt build-up or debris in the faucet, clean it out with some basic bathroom cleaner or a damp rag dipped in white vinegar.
You might want to lubricate the stem with a little plumber’s grease before you put it back into the housing. This isn’t strictly necessary, so if you don’t have any, don’t worry. [29] X Research source
