Why Is My Water Pressure Low?
Low water pressure is one of those problems that can be really annoying day to day. Sometimes it’s a simple fix, but other times there’s a deeper issue that needs tracing properly.
The first thing to work out is whether the pressure is poor across the whole house or only on one tap, shower or appliance. That usually gives a good clue as to what’s going on.
Is it the whole house or just one outlet?
If the whole house has low pressure, it’s more likely to be related to the incoming supply, stop tap, pressure reducing valve or pipework.
If it’s just one tap or shower, it’s usually a local issue such as a blocked aerator, shower valve problem, cartridge issue or restriction in that part of the pipework.
Try both hot and cold water. If the cold is fine but the hot is poor, the issue may be with the boiler, cylinder or hot water pipework rather than the mains supply.
Common causes of low water pressure
1. Stop tap not fully open
This sounds basic, but it does happen. If the stop tap has been partly closed after work has been done, it can restrict the whole house.
2. Blocked tap aerators
Tap aerators can collect limescale and debris. This can make it look like you have a pressure problem when it’s actually just a blocked outlet.
3. Shower valve issues
Showers can lose performance if filters block, cartridges wear or the valve has an issue. If it’s only the shower affected, this is worth checking.
4. Leaks
A leak can reduce pressure, especially if it’s significant. Sometimes leaks are obvious, but sometimes they’re hidden under floors, behind boxing or outside.
5. Incoming mains supply
Sometimes the problem is outside the property. If neighbours are also affected, it could be a mains supply issue rather than something inside your home.
What you can try first
- check the stop tap is fully open
- clean tap aerators
- check if neighbours have the same problem
- see whether hot, cold or both are affected
- look for visible leaks or damp patches
If pressure has suddenly dropped, or it’s affecting the whole house, it’s worth getting it checked properly rather than guessing.
When should you call a plumber?
If the simple checks don’t solve it, or the pressure keeps getting worse, there’s usually something more going on. It could be a restriction, faulty valve, hidden leak or issue with the system setup.
It’s always better to diagnose the cause properly rather than just changing parts and hoping for the best.
Final thoughts
Low water pressure can be simple, but it can also point to a bigger problem. The main thing is narrowing down whether it’s one outlet, hot water only, cold water only, or the whole house.
Having water pressure problems?
I can take a look, find the cause and get it sorted properly.
Call: 07974 212232
Call Now