You can often fix a dripping tap yourself by replacing the seals and O-rings in the tap's internal parts. The most common causes are worn components that allow water to leak through. With the right tools and a little patience, you can solve the problem in a few hours and save both money and water.
Why is my tap dripping and what does it mean?
A dripping tap is usually caused by worn seals that no longer seal properly against the water flow. The tap head contains small rubber components that harden and shrink over time, allowing water to seep through even when the tap is closed.
Limescale deposits can also cause water leaks by preventing tap parts from closing tightly. Hard water leaves mineral deposits that build up around seals and valves, creating small openings for water to flow through.
Fixing the problem quickly is important for several reasons. A faucet that drips 60 times per minute wastes about 20 liters of water per day, which is noticeable in your water bill. Constant moisture can also damage the faucet fixture and cause mold to form under the sink or washbasin.
What tools and materials do I need to repair a dripping faucet?
To repair a faucet, you will need basic tools that are found in most homes. An adjustable wrench is most important for loosening the faucet head, along with flathead and Phillips screwdrivers in various sizes.
Materials you will need to purchase include:
- New seals and O-rings in the correct size
- Possibly a completely new faucet head if the old one is too worn out.
- Plumber's grease for lubricating threads
- Descaler for cleaning components
Take the old parts with you to the hardware store to find the right size for the replacement parts. Most faucets use standard sizes, but this can vary between different manufacturers and models.
How do I safely turn off the water before the repair?
Always turn off the water before starting any plumbing repairs to avoid flooding. Look under the sink or washbasin for local shut-off valves, which you turn clockwise until they stop.
If you cannot find the local valves, you must turn off the main water valve. This is usually located in the basement, in a utility closet, or outdoors at the water inlet to the house. Mark the valve's original position so that you can easily open it again.
After turning off the tap, open it to drain any remaining water from the pipes. This will prevent water from flowing out when you remove the tap head. Have a towel ready to wipe up any remaining water.
How do I replace the seals and O-rings in the tap?
Start by loosening the lock nut on the faucet head with the wrench by turning it counterclockwise. The faucet head should be able to be unscrewed completely once the lock nut has been removed. Be careful not to scratch the faucet fixture.
Inside the faucet head, you will find the seal, which is usually located at the bottom. Remove the old seal and any O-rings around the faucet head shaft. Clean all surfaces of limescale deposits with a soft brush.
Install the new seals in the same order as the old ones. Lightly lubricate the threads with plumber's grease before screwing the tap head back on. Tighten firmly, but not so tightly that you damage the threads. Common mistakes include installing the seals the wrong way round or tightening them too much.
When should I contact a plumber instead of repairing it myself?
Contact a professional plumber if water leaks from the pipe joints behind the tap or if the water pressure is constantly low. This may indicate major problems in the water installation that require special tools and expert knowledge.
If the faucet continues to drip after replacing the washers, it may be due to worn valve seats or other internal damage that requires professional repair. Old faucets may have deformed threads or corroded parts that cannot be repaired at home.
Also call for help if you are unsure about turning off the main water supply or if the leak is so large that it risks damaging the property. Emergency water leaks can cause extensive water damage in a short period of time.
How 24 Center assists with faucet repairs and plumbing issues
At 24 Center, we offer professional assistance with all types of faucet repairs and plumbing problems, from simple seal replacements to complex water installations. Our qualified plumbers are available around the clock for both emergency leaks and scheduled repairs.
Our plumbing services include:
- Emergency assistance for water leaks and blocked drains
- Repair and replacement of faucets and mixers
- Installation of new water installations
- Professional diagnosis of pressure problems and pipe damage
With our nationwide network of local technicians, we ensure a quick response time when you need help. Call 08 40 24 240 for immediate assistance or book online for less urgent plumbing issues.
Frequently Asked Questions
How do I know if the problem is really worn seals or something else?
If the drip comes directly from the tap opening when the tap is closed, it is almost certainly worn seals. If the water comes from the base of the tap head or the joints behind the tap, it may be a pipe problem that requires professional help. Also try turning the tap more tightly closed—if the drip continues, the seals are definitely worn.
What should I do if I cannot find the right size seals at the hardware store?
Measure the old seal with a ruler or tape measure and note down both the diameter and thickness. Most hardware stores can order unusual sizes within a few days. Alternatively, you can contact the tap manufacturer directly with the model number to obtain original spare parts.
How often should I replace the seals in my faucets as a preventive measure?
Seals normally last 5-8 years, depending on water quality and usage. In areas with very hard water, they may need to be replaced more often. Replace seals preventively if you notice that the tap is becoming more difficult to close or if the water pressure decreases noticeably.
Can I use regular oil or petroleum jelly instead of plumber's grease?
No, only use plumber's grease that is specially designed for plumbing purposes. Ordinary oil and petroleum jelly can dissolve rubber seals over time and cause more leaks. Plumber's grease is water-resistant and does not adversely affect rubber components.
What should I do if the faucet head is stuck and cannot be unscrewed?
Spray lime remover around the threads of the faucet head and leave it to work for 15-20 minutes. Then use a larger wrench for more force, but be careful not to damage the fixture. If it is still stuck, you can gently heat the area with a hair dryer to expand the metal.
How long can I wait to repair a dripping faucet?
Even if it's not urgent, you should fix it within a few weeks. A dripping faucet wastes up to 20 liters of water per day, which costs money and can cause water damage. The longer you wait, the more limescale can build up and make the repair harder.
What signs indicate that the entire faucet needs to be replaced instead of repaired?
Replace the entire faucet if the metal parts are corroded, if the threads are damaged so that the faucet head cannot be tightened properly, or if the faucet continues to leak despite new seals. Faucets older than 15-20 years are often more economical to replace than to repair repeatedly.
