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A Quick Guide to Understanding Water Pressure

Published: 2nd Aug 2022Read Time: 4 min
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When designing a dream bathroom, you want to be sure that fittings and fixtures work to the best of their ability. Nowhere is this more important when using the shower, bath, and basin. So, you may be looking to create a new bathroom or replace, upgrade or renovate. Therefore, it’s worth understanding how water pressure may affect your plans. Here, The Bathroom Showroom offers a short quick guide to water pressure.

What Do We Mean When We Say Water Pressure in the Bathroom?

When we talk about water pressure in the bathroom, we’re referring to the water that comes from our shower, bath taps, and basin taps. 

The pressure is the force of water that comes through from the main water supply and into your bathroom pipework. This flow can be measured to tell you whether your water pressure is low or high. This information will then help you select the best shower and taps for your bathroom.

Why Does Water Pressure Vary?

Water pressure will vary in every home for one main reason. Where your home is to the nearest water supply will determine the strength of your water pressure. 

Your home may be at the bottom of a hill or valley. Therefore, you could be lower than your supply from your local reservoir. So, your water pressure will be strong and high. 

Yet, if you're located at the top of a hill, and above the water supply, then the water has to flow uphill. Therefore your water pressure will be lower and consequently weaker. 

You may be interested in finding out where your home sits in relation to your local water supply. If so, get in touch with your local water authority for further guidance.

How is Water Pressure Measured?

Water pressure is measured in terms of what is referred to as bars. One bar is equal to the force that's needed to push water up to a distance of ten metres. UK water suppliers are required by law to ensure that each household has a minimum water pressure supply of one bar.

What Are the Three Main Types of Water Pressure to Consider in the Bathroom?

Generally, there are three pressure types found in home systems. These will need to be considered when choosing bathroom taps and showers. They include a low pressure that is gravity fed, a combi-boiler that is high pressure, and a pumped system that is also high pressure.

  • Gravity-Fed - Low Pressure

This home system is a set-up that includes a cold water tank usually located in the loft. There’s also a hot water cylinder that tends to be located upstairs somewhere. Many people install these in airing cupboards. 

A low-pressure gravity system is perhaps the most common domestic water system you’ll find in a home. With this type of set-up, it’s a good idea to select taps and showers that can handle low-pressure requirements.

  • Combination (Combi) Boiler - High Pressure

The combi boiler is a home system set-up that doesn't have a hot or cold water storage tank. The boiler for this vented system is usually found in the kitchen, making it accessible. A flexible system, a combi boiler tends to be more compatible with more taps and showers. 

  • Pumped System - High Pressure

A high-pressure unvented choice, the pumped system is yet again more compatible with more showers and taps. This set-up makes use of a hot water tank, but no cold-water tank. Storing water in the hot water tank, you’ll usually find this located in an airing cupboard. 

If you’re looking for help selecting the best products to work with your water pressure, book an appointment with The Bathroom Showroom. Experts in all things bathrooms, we can help turn your dream bathroom into a reality.

For further bathroom ideas and bathroom inspiration, take a look at our Blog and Rest and Relaxation section.