What wears inside a faucet
- Rubber washers on older compression taps
- Ceramic cartridges in single-lever faucets, which scale up in hard water
- O-rings around spouts that let water weep from the base
- Diverter valves in pull-down sprayers
- Aerators clogged with grit, causing weak, spitting flow
The repair
- Close the stop valves under the basin and open the tap to release pressure.
- Plug the drain so small screws cannot fall in.
- Remove the handle and trim, then pull the cartridge or stem.
- Match the part by brand and model, clean the valve body of scale.
- Reassemble with silicone grease on the O-rings and test hot and cold.
Repair or replace?
Quality faucets are worth rebuilding for decades. Inexpensive ones with discontinued parts, corroded bodies or cracked spouts are often better replaced. We will tell you which way we would go. Stop valves under the basin that will not close fully should be changed at the same visit.
Related
If the problem is low pressure everywhere, not just one tap, see low water pressure causes. For shower and tub controls, see shower valve replacement, and for a new sink, see kitchen sink installation.
The short version
Tell-tale signs
- Lever spins loose or grinds to turn
- Wet hose bib or stain behind the washer box
- Spout drips with the lever fully closed
- Swollen particleboard at the bottom of the vanity
Kit on the van
- Basin wrench and cartridge puller
- Quarter-turn stops and braided connectors
- Tubular trap kits in white plastic and chrome
- Putty, silicone and thread tape
How we go about it
- Dry every joint with paper and look again in ten minutes
- Shut both stops and open the tap to bleed it
- Strip the fixture and look at seats, seals and threads
- Fit the new cartridge, supplies or the whole unit
Your questions, answered plainly
Do you install faucets I buy myself?
Yes, as long as it suits your sink and counter; we will check holes and connections first.
Why does my fresh faucet have low flow?
Debris from the lines often lodges in the new aerator; it needs a quick clean.
