Increase Mains Water Pressure


Water pressure affects everything from showering and cleaning to commercial and manufacturing processes. Yet, many buildings face the common issue of low mains water pressure. In this article, we’ll look at the causes of low water pressure and explore practical solutions to increase mains water pressure.

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Understanding Mains Water Pressure

Mains water pressure refers to the force with which water is delivered from the main supply into your home. Understanding the basics of water pressure is essential for identifying and addressing any issues.

Before looking into solutions, it’s essential to understand why it is crucial to increase mains water pressure. Insufficient pressure can result in slow-filling appliances, weak shower sprays, inefficient irrigation, and delays in manufacturing processes. Maintaining optimal water pressure ensures a seamless and efficient water supply for various residential industrial and commercial tasks.

Signs of Low Water Pressure

Low water pressure manifests in various ways, such as slow-filling water systems, weak shower streams, inefficient irrigation and slow machinery cleaning. Recognising these signs early on can prompt businesses to take corrective measures and prevent further complications.

Causes of Low Water Pressure

Several factors contribute to low water pressure, including clogged pipes, water leaks, and problems in the municipal supply system. Identifying the root cause is crucial for implementing effective solutions.

Pipe Blockages

Accumulated debris and mineral deposits within pipes can significantly reduce water flow. Identifying and clearing these blockages is fundamental in addressing low water pressure.

Faulty Pressure Regulator

A malfunctioning pressure regulator may lead to inconsistent water pressure. Checking and adjusting this device can often resolve pressure issues.

Leaks in Water Pipes

The most undesirable outcome associated with insufficient water pressure in commercial structures is the occurrence of leaks. Low water pressure can damage the plumbing system, hindering the complete delivery of water to faucets.

Municipal Water Supply Issues

Sometimes, the problem lies outside your property. Municipal water supply issues, such as pipe leaks or maintenance, can impact water pressure. Staying informed about local water supply conditions is crucial.

How to check for leaks in your water pipes

Solutions to Increase water pressure from mains

Before seeking professional help, property owners can try simple solutions. These may include checking for leaks, cleaning aerators, and ensuring debris-free pipes. These steps often make a noticeable difference in water pressure.

Check for Leaks

Periodically inspecting your plumbing system for leaks is essential. Addressing leaks quickly conserves water but also helps maintain optimal pressure.

Clean Faucet Aerators

Mineral deposits in faucet aerators can impede water flow. Cleaning or replacing aerators is a simple yet effective solution.

Inspect and Replace Pipes

Old and corroded pipes may restrict water flow. Inspecting and replacing damaged sections can enhance overall water pressure.

Adjust Pressure Regulator

If you have a pressure regulator, adjusting it to the recommended pressure can make a noticeable difference. Refer to the manufacturer’s guidelines for proper adjustments.

Causes of low water pressure

How to increase mains water pressure

In some cases, low water pressure requires professional intervention. For simple household issues, we advise you to contact your local plumber. Our expert site crews can conduct a site visit and identify any complex issues regarding your commercial plumbing and pumping system.

Installing a Pressure Booster Pump

One effective solution for increasing water pressure is installing a pressure booster pump. These devices enhance the force of water as it enters your system, ensuring a more robust flow for various activities.

Installing a booster pump is a viable option for persistent low water pressure. These pumps increase water pressure throughout the plumbing system, ensuring consistent flow.

Choosing the Right Pressure Booster Pump

Selecting the right pressure booster pump is crucial for optimal performance. Consider factors such as water demand, pump capacity, and energy efficiency. Consulting with a professional or project designer can help you choose the most suitable option for your application.

Tricel is an authorised supplier of Grundfos and Calpeda products amongst many other top industry manufacturers, including Wilo, Lowara, Xylem and DAB.

The Grundfos Hydro Multi-E pressure boosting system suits commercial water pressure boosting and district cooling and heating applications.

Calpeda’s BS range is ideal for supplying and boosting water pressure in civil and industrial buildings.

Wilo has a wide range of water pressure boosting systems suitable for heavy-duty industrial and commercial operations and booster sets for drinking water applications.

Upgrading Water Pipes

Outdated or narrow pipes can be a significant factor in low water pressure. Upgrading to larger pipes can enhance water flow and pressure.

Note: Adding a booster pump directly to mains water pressure is illegal in some countries. The added pressure created by a booster pump can damage mains pipework. In most cases, you will need to insert a break tank.

Regular Maintenance Practices

Maintaining your water pressure system is critical to its longevity and efficiency. Regular inspections, cleaning filters, and promptly addressing minor issues can prevent water pressure decline over time.

Key Benefits:

  • Quicker filling of systems,
  • Improved operational workflows
  • Better performance of applications


  1. How can I check if I have low water pressure in my home?
    • You may notice slow-filling toilets, weak shower streams, or slow irrigation.
  2. Are pressure booster pumps energy-efficient?
    • Many modern pumps are designed with energy efficiency in mind. The Wilo-SiBoost Smart Helix EXCEL is a good option for an energy efficient booster set to increase mains water pressure.
  3. When should I seek professional help for water pressure issues?
    • If DIY solutions don’t work or if you suspect more significant plumbing issues.
  4. Is a booster pump a long-term solution?
    • Yes, a booster pump can provide a long-term solution for persistent low water pressure. However, proper installation and maintenance are crucial for its effectiveness
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