A common problem in bathrooms and kitchens is water leakage caused by a loosely tightened tap or mixer. Water that flows slowly and steadily can lead to issues such as water waste, excessive billing costs, and long-term damage to your plumbing. To prevent this, you should at least know how to tighten a tap or mixer.
Methods to tighten a tap or mixer
There are several ways to tighten a tap or mixer, depending on the type and design of the tap. Here we will present some of the most common methods:
- Tighten the side screws
- Use an adjustable wrench
- Use a perforated holding plate
Tools needed to tighten a tap
Before starting this task, make sure you have the necessary tools for each step. Here is a non-exhaustive list of the equipment you might need:
- A crosshead or flat screwdriver
- A spanner or adjustable wrench
- A perforated holding plate (depending on the tap model)
- A dry cloth
- Teflon sealing tape or an O-ring (optional)
Tighten the side screws to tighten a tap
Locate the side screws
Inspect the body of the tap for screws that secure it. They are often located on the sides of the tap, which is why they are called "side screws." It may be necessary to remove a decorative cover to access them.
Determine the type of screwdriver to use
The screws used on taps are usually crosshead or flat. Choosing the right screwdriver accordingly will make tightening easier and minimize potential damage to the screws.
Tighten the side screws
Carefully insert your screwdriver into the screw and turn it clockwise. Tighten until the screw is firmly fixed and you can no longer turn it easily. Be careful not to overtighten, as this could damage the tap or the screw.
Use an adjustable wrench to tighten a mixer
Locate the area to tighten
In the case of a mixer, the part that sometimes needs tightening is the threading connecting the spout of the mixer to the part embedded in the wall or countertop. This area is usually accessible from underneath and is near the base of the spout.
Choose a suitable wrench
There are several types of wrenches, but for this task, it is recommended to use an adjustable wrench. This type of wrench offers an adjustable grip for different sizes of pipes and fittings.
Tighten the mixer threading
Using the adjustable wrench, firmly (but not excessively) grip the threading area you want to tighten. Turn the wrench clockwise until the spout is securely fixed. Remember not to overtighten to avoid potential damage.
Use a perforated holding plate to tighten a tap
In some cases, you may encounter a tap model that needs to be held with a perforated holding plate. This is often the case for taps mounted on a stainless steel or resin sink.
Inspect the underside of the sink
Under the sink, look for the part where the tap is attached. You should find the perforated plate, which is a metal or plastic piece pierced with holes to allow the passage of screws and rods.
Tighten the fastening nuts
Use a spanner or adjustable wrench to tighten the nuts around the threaded rods that pass through the perforated plate. As with the other methods, tighten enough to firmly secure the tap, but without forcing excessively to avoid possible damage.
By following our instructions, you should be able to successfully tighten your tap or mixer. Do not hesitate to seek the help of a craftsman if you are unsure of the method to apply, to avoid any risk of damaging your installation.

