A beautiful tap or shower can disappoint if it is unsuitable for the available water supply. Start with the system and the selected fitting's operating requirements before choosing a larger head or a different spray pattern.
Pressure and flow describe different things
Pressure is the force available in the supply; flow is the volume delivered over time. Timing how long a jug takes to fill can describe flow at that outlet, but it does not measure pressure or identify the cause of a weak shower.
Compare like-for-like requirements
Ask an installer to identify the water system and the pressure available while water is running. Then compare both hot and cold supplies with the model's minimum and maximum operating range. Published performance at one test pressure does not promise the same flow in every home.
Consider the whole shower configuration
Multiple outlets can increase the demand on the supply when used together. A larger overhead head does not create more pressure. Before replacing a fitting or adding a pump, have restrictions, compatibility and the installation arrangement assessed. A product label alone is not a diagnosis.
Before you order
- Identify the hot-water system and supply arrangement.
- Obtain pressure and flow information for normal use.
- Check the model's operating range and performance data.
- Confirm which outlets can operate together on your system.
Common questions
Does a jug test tell me the pressure in bar?
No. It measures delivered volume over time. Pressure requires an appropriate measurement and interpretation of the supply conditions.
Can a bigger shower head fix weak pressure?
Not by itself. Head design changes the spray, while the available supply and restrictions determine what it can deliver.