EPS MultiBoost Pump Repair Dublin

Specialist EPS MultiBoost water pressure pump repairs, servicing, fault diagnosis and replacement throughout Dublin.

Is your EPS MultiBoost pump running continuously, losing water pressure, switching on and off repeatedly, making excessive noise or failing to start?

At Boosterpumps.ie, we specialise in diagnosing and repairing domestic water pressure boosting systems, including EPS MultiBoost tank and pump installations.

Based in Terenure, Dublin 6, we provide mobile water pump repair and replacement services throughout Dublin.

Whether the problem is caused by a faulty pump, an electronic controller, a leaking non-return valve or an issue with your water storage tank, we aim to identify the underlying fault before recommending repair or replacement.

For EPS MultiBoost pump advice, call 083 206 3931.

What Is an EPS MultiBoost Water Pump System?

The EPS MultiBoost is a packaged water pressure boosting system manufactured by EPS Group in Ireland.

It combines a cold-water storage tank with a pump and automatic control system to provide increased water pressure and flow throughout a property.

The incoming supply fills the storage tank, and the pump delivers water to showers, taps and other connected outlets when required.

Unlike a standalone inline booster pump, the EPS MultiBoost stores water before pumping it, making it suitable for installations where the incoming supply has insufficient pressure or flow.

Depending on the model, the system may include:

A non-corrosive cold-water storage tank
A submerged multistage water booster pump
An electronic automatic pump controller
A float-operated inlet valve
Dry-running protection
Automatic start and stop operation
A non-return valve
Overflow and drain connections
An integrated pressure or accumulator vessel
Variable-speed pressure regulation on selected models

The precise components depend on the age and specification of the unit.

EPS MultiBoost Models We Can Assess

The EPS MultiBoost range includes several tank configurations and control options.

EPS MultiBoost Rectangular

Designed for installations where available height may be restricted, including houses and apartments.

EPS MultiBoost Slimline

A space-saving tank and pump arrangement commonly suited to utility rooms, garages or under-stairs locations.

EPS MultiBoost Utility

A range of larger water storage and boosting units for properties with greater water demand.

EPS MultiBoost Snug 355L

A compact under-stairs boosting system with selected single-pump and twin-pump configurations.

EPS MultiBoost Fixed-Speed Systems

These use automatic pump controllers to start and stop the pump according to water demand.

EPS MultiBoost Variable-Speed Systems

These incorporate electronic speed regulation designed to maintain a more consistent delivery pressure as household water demand changes.

If you are unsure which EPS MultiBoost model is installed in your property, send us a photograph of the tank, pump controller and identification label.

Common EPS MultiBoost Pump Problems

1. EPS MultiBoost Pump Running Continuously

One of the most common symptoms of a water booster system fault is a pump that continues running after all taps and showers have been turned off.

Possible causes include:

A leaking toilet valve or tap
A hidden leak in the connected pipework
A faulty non-return valve
An electronic controller fault
A pressure sensor or flow-control problem
A pump unable to develop adequate pressure
An issue with the pressure vessel
Worn or damaged internal pump components

Continuous operation can increase energy consumption and place unnecessary strain on the pump.

A MultiBoost pump that will not switch off does not automatically need replacing.

The connected plumbing system, controller and pump should be investigated before deciding on repair or replacement.

2. EPS MultiBoost Losing Water Pressure

If your MultiBoost previously delivered good shower and tap pressure but is now struggling, there may be a problem with either the water supply or pump performance.

Possible causes include:

Insufficient water in the storage tank
A faulty inlet ball valve
Restricted pipework or a blocked strainer
Damaged or worn pump impellers
Incorrect controller settings
A faulty pressure sensor
A leak in the water distribution system
A problem with the variable-speed controller, where fitted

The tank water level and available pump flow should be checked before increasing pressure settings or replacing equipment.

3. EPS MultiBoost Switching On and Off Frequently

Frequent pump starting and stopping, sometimes called short cycling, may indicate pressure loss or a controller problem.

Possible causes include:

A leaking non-return valve
Small leaks within the pipework
A leaking toilet cistern
An incorrectly charged or faulty pressure vessel, where fitted
Incorrect cut-in pressure settings
A defective pump controller
Flow sensor problems

Some EPS MultiBoost fixed-speed controllers include an integrated pressure vessel designed to reduce unnecessary cycling from minor pressure fluctuations.

Where a vessel is fitted, its condition and pre-charge may need checking in accordance with the relevant manufacturer's instructions.

Repeated cycling should be investigated before it causes additional wear.

4. EPS MultiBoost Pump Not Starting

If the pump fails to operate when a tap is opened, possible causes include:

Electrical supply failure
A tripped protective device
Pump motor failure
A faulty automatic controller
Dry-running protection being activated
A jammed or damaged pump
A pressure or flow sensor fault
Insufficient water in the storage tank

EPS MultiBoost systems incorporate pump protection features on relevant models, which may stop operation when an inadequate water supply is detected.

The cause of the shutdown should be identified before attempting repeated restarts.

5. EPS MultiBoost Making Excessive Noise

An EPS MultiBoost system should operate without sudden grinding, rattling, harsh vibration or unusually loud mechanical noises.

Although some operating sound is normal, an increase in noise can be an early indication of a developing problem.

Possible causes include:

Worn pump bearings

A worn motor bearing may cause rumbling, grinding or whining while the pump is operating.

Damaged impellers

A worn or damaged impeller may affect water pressure and create abnormal vibration or mechanical noise.

Cavitation or restricted water supply

A rattling or gravel-like sound may indicate that the pump is not receiving adequate water.

Low water level

An inadequate water level can affect pump performance and cause protective shutdowns or noisy operation.

Vibration through pipework

Poorly supported pipework or rigid connections may transfer vibration to floors, walls and surrounding structures.

Loose components

Mounting issues or unsecured fittings may cause unnecessary rattling during operation.

Can a Noisy EPS MultiBoost Pump Be Repaired?

In many cases, excessive noise can be investigated without immediately replacing the complete tank and pump system.

Depending on the cause, repairs may involve correcting water supply restrictions, adjusting pipework, replacing accessible components or assessing the submerged pump assembly.

If the pump develops sudden severe noise, overheats or loses water delivery, switch it off safely and arrange professional inspection.

6. EPS MultiBoost Dry-Running Faults

The MultiBoost range includes dry-running protection on relevant controllers to help prevent damage when the stored water supply is inadequate.

If your system repeatedly shuts down, possible causes include:

Insufficient incoming water
An empty storage tank
A sticking or faulty inlet float valve
A blocked inlet connection
A controller fault
Air or other problems affecting pump operation

Some systems automatically attempt to restart after a delay.

Repeated dry-running shutdowns should not be ignored. The water supply and controller should be checked to establish why the system is stopping.

7. EPS MultiBoost Tank Not Filling

If the tank is not filling correctly, the pump may be starved of water even when the electrical and pumping components are working.

Possible causes include:

A sticking ballcock or float valve
Low incoming mains flow
A restricted inlet
A closed isolation valve
Debris affecting the inlet valve

We can investigate the supply arrangement and determine whether the problem is associated with the tank filling system rather than the pump itself.

8. EPS MultiBoost Tank Overflowing or Leaking

If water is escaping from the tank, overflowing continuously or appearing around the installation, it is important to identify the source.

Possible causes include:

A faulty or incorrectly adjusted float valve
A leaking inlet valve
Loose pipework connections
Defective tank fittings
Damaged seals
A cracked tank or damaged connection
An improperly arranged or obstructed overflow

An overflowing tank is not necessarily a pump failure.

Where an EPS MultiBoost is installed in an attic or another location above occupied rooms, leaks and overflow problems need particular attention to avoid property damage.

Never block or cap a tank overflow to stop visible water discharge.

EPS MultiBoost Pump Controller Repairs

The automatic controller is an important part of the EPS MultiBoost system.

Different models may use different controllers, including:

EasyPress Controller — Fixed Speed

Automatically starts and stops the pump according to pressure and flow conditions.

Possible faults include failure to start, failure to stop or protective shutdowns.

Presflo Multi Controller — Fixed Speed

An automatic controller with adjustable operating settings on applicable versions.

Some versions incorporate a small pressure vessel to help reduce frequent cycling.

Possible faults include:

Incorrect cut-in pressure
Pressure loss
Continuous running
Cycling
A faulty non-return valve
A defective pressure vessel
Electronic control problems

SteadyPres Controller — Variable Speed

A variable-speed controller designed to adjust pump output as demand changes.

Possible symptoms include:

Fluctuating pressure
Failure to maintain selected pressure
Controller warning indications
Pump speed varying abnormally
Failure to start
Unexpected stopping
Continuous operation

The correct repair depends on the specific controller and the fault identified.

EPS MultiBoost Fixed Speed vs Variable Speed

EPS MultiBoost systems are available with different control arrangements.

Fixed-speed systems normally operate the pump at its designed speed when water demand requires it. Delivered pressure can vary as the amount of water being used changes.

Variable-speed systems adjust motor speed to help maintain a more consistent pressure across different levels of demand.

When assessing a fault, it is important to establish which system is installed.

For example, a gradual reduction in pressure under heavy demand on a fixed-speed unit does not necessarily indicate a malfunction. Conversely, significant pressure instability on a variable-speed system may justify checking the pressure controls, water supply and pump performance.

We can assess the existing installation and explain whether the problem is normal system behaviour or a repairable fault.

Can an EPS MultiBoost Pump Be Repaired Without Replacing the Tank?

Yes, in some circumstances the faulty component can be repaired or replaced without replacing the entire MultiBoost system.

Depending on the fault and the availability of compatible components, possible remedial work may include:

Pump controller replacement
Non-return valve repairs or replacement
Pressure-vessel assessment
Inlet float valve replacement
Repair of accessible pipework connections
Correction of water supply restrictions
Submerged pump replacement
Investigation of electrical and control faults
Noise and vibration reduction
Repair of suitable leaking fittings

If the storage tank remains in good condition, replacing the entire system may not always be necessary.

However, where the tank is damaged, parts are unavailable or several major components have failed, a complete replacement may be more economical.

At Boosterpumps.ie, we aim to establish the most practical repair solution before recommending a new installation.

EPS MultiBoost Pump Replacement Dublin

Where repair is no longer practical, we can assess the system and advise on a suitable replacement.

Factors to consider include:

Storage tank capacity
Incoming water supply and refill rate
Number of bathrooms and outlets
Required pressure and flow
Fixed-speed versus variable-speed operation
Available installation space
Existing inlet, outlet and overflow connections
Electrical supply
Installation accessibility
Noise and vibration
Compatibility with the property's hot-water arrangement

We can discuss whether replacing an individual pump, fitting a suitable alternative or upgrading the complete boosting system would be the better option.

Any replacement needs to be correctly specified for the existing plumbing system and applicable installation requirements.

Why Choose Boosterpumps.ie?

Boosterpumps.ie specialises in domestic water boosting systems, pump repairs, servicing and replacements throughout Dublin.

We understand the importance of diagnosing the whole installation rather than assuming every loss of water pressure is caused by the pump.

Our services include:

EPS MultiBoost fault diagnosis
Fixed-speed and variable-speed pump assessments
Automatic pump controller faults
Pumps running continuously
Loss of water pressure
Frequent starting and stopping
Excessive pump noise and vibration
Tank filling and overflow problems
Dry-running and protective shutdown faults
Repair-versus-replacement advice
Domestic booster pump replacement

We are based in Terenure, Dublin 6, and provide services throughout Dublin.

Frequently Asked Questions

Why is my EPS MultiBoost pump running continuously?

Possible causes include leaking pipework, faulty non-return valves, incorrect controller operation or an inability to maintain water pressure. A proper diagnosis is needed to establish the cause.

Why does my EPS MultiBoost keep switching on and off?

Repeated cycling may result from pressure loss, small plumbing leaks, a faulty controller, a non-return valve problem or a defective pressure vessel on systems where one is fitted.

Why is my MultiBoost pump making so much noise?

Possible causes include damaged impellers, worn bearings, poor water supply, vibration through pipework or mechanical wear within the pump.

Can I replace just the pump in an EPS MultiBoost?

Potentially. If the tank and other components remain suitable, a compatible replacement pump may be an option. The exact model, hydraulic performance, control arrangement and installation requirements must first be assessed.

Does an EPS MultiBoost have a pressure vessel?

Some versions, particularly those using certain Presflo Multi controllers, include an integrated pressure or accumulator vessel. The equipment fitted varies by model and age.

Is an EPS MultiBoost suitable for a combination boiler?

EPS identifies applications with suitable pressurised hot-water systems, including combination boilers. However, compatibility depends on the complete property installation and should be verified before replacing or modifying the system.

Do you repair EPS MultiBoost pumps throughout Dublin?

Boosterpumps.ie provides water pump fault diagnosis, repair assessments and replacement services throughout Dublin from Terenure, Dublin 6.

Contact Boosterpumps.ie for EPS MultiBoost Pump Repairs

If your EPS MultiBoost system has stopped working, is losing pressure or has become noisy, contact us before deciding to replace it.

For initial advice, please provide:

A photograph of the complete EPS MultiBoost tank
A close-up photograph of the pump controller
The model or identification label, if available
A description of the problem
Details of any warning or error indications
Your location in Dublin

Call 083 206 3931

Email info@boosterpumps.ie

Boosterpumps.ie — Water Pump Repair, Servicing and Replacement Specialists, Dublin.