A sudden or gradual drop in water pressure in your home can quickly become a problem: an inefficient shower, a slow-running faucet, a washing machine that takes forever to fill… But before you panic, there are simple ways to diagnose the source of the problem, and in many cases, a quick solution is possible. As experienced plumbers, we’ll take you step-by-step through what’s causing the loss of pressure and how to fix it.
Identifying the signs of low pressure
The first thing to do is confirm the problem. It’s not necessarily a general failure: sometimes only one area of the house is affected.
Here are the main signs to look out for:
- Low flow at one or more taps
- Shower spray irregular or too light
- Difficulty filling a bathtub, sink or tub
- Unusual noises in the pipes
These symptoms may be occasional or persistent, localized or generalized. The more precise your findings, the faster the diagnosis.
What are the possible causes of a loss of water pressure?
Several factors can cause a drop in pressure, whether related to your installation or to an external problem:
1. Public network problem
First of all, ask your neighbors if they are experiencing the same problem. If so, it may be due to an intervention on the network or a temporary problem with the water supplier. Wait or contact the water company for confirmation.
2. Shut-off valve partially closed
A poorly opened water tap (often located under the sink, in the garage or at the meter) can restrict the flow. Check that it is fully open.
3. Limescale and dirt in filters or aerators
The aerators on your taps can scale up or become clogged over time, blocking the flow of water. Unscrew them and clean them thoroughly.
4. Leak or microleak in the pipe
Even a small leak can reduce pressure. Watch for moisture stains, suspicious droplets and water loss at the meter when everything is shut off.
5. Problem with pressure reducer
If you have an incorrectly adjusted or faulty pressure reducer at the inlet to your system, it can excessively reduce the pressure throughout the house.
6. Old or scaled pipes
In older homes, metal pipes can become partially blocked over time, due to scale or internal corrosion.
How to solve the water pressure problem?
It all depends on the cause. Here are the most common solutions:
- Fully open shut-off valves
- Clean or replace aerators on faucets and shower heads
- Bleed pipes, especially after work or long periods of inactivity
- Check pressure reducer and adjust or replace if necessary
- Check the condition of pipes in the case of old or suspect networks
In the case of a hidden leak or a deeper problem, only a professional plumber will be able to intervene effectively with the right tools: inspection camera, pressure test, acoustic detection, etc.
Conclusion: optimum water pressure is essential for comfort
A loss of pressure should never be overlooked. Even if it seems slight or localized, it may be the sign of a more serious malfunction, and sometimes conceals a leak that is not visible. To avoid unpleasant surprises, it’s best to call in a specialist as soon as the problem persists.
Our team responds quickly to diagnose and repair any type of water pressure problem, whether in a bathroom, kitchen or throughout your entire installation. Visit our plumbing page to find out more, or contact us directly here.
