An image of an engineer fixing a control panel

Submersible Pump Maintenance: How Often Should You Service Each Type?

Every submersible pump must be serviced at least once a year. Pumps operating in harsh, high-demand, or critical environments — sewage, mining, dewatering, and industrial process applications — require more frequent submersible pump service, with quarterly or biannual checks as the minimum. It also depends on good housekeeping; if rags and fat often enter the sump, additional tinkering and servicing are required to avoid costly breakdowns. A pump that is never serviced is not a pump that is saving money. It is a pump that is accumulating for a future emergency.

Why Submersible Pump Maintenance Cannot Be Optional

A submersible pump operates in one of the most demanding environments of any mechanical equipment: fully submerged, often handling solids, abrasives, or chemicals, running continuously or cycling frequently, and — critically — out of sight. Unlike a surface-mounted machine, a submersible pump gives no visual warning when something is going wrong. By the time the failure becomes apparent, the damage is already done.

The submersible pumps market was valued at £274.74 million in the UK for 2025, reflecting the scale of dependency on these systems across residential, commercial, and industrial sectors(Grand View Horizon 2025). That dependency makes unplanned failure not just an inconvenience — it is a financial and operational event.

The case for regular submersible pump maintenance rests on three pillars: asset lifespan, energy efficiency, and — most critically — the prevention of costly unplanned downtime. Each is examined below.

The Financial Case for Regular Pump Maintenance

1. Extending Asset Lifespan

A well-maintained, high-quality submersible pump typically lasts 10 to 15 years. Some properly maintained systems exceed 20 years of service (Rafsun 2025). A neglected pump — one that never receives a professional pump service — will often fail within 5 years, sometimes far sooner in aggressive environments.

The arithmetic is straightforward. A commercial submersible sewage pump with a purchase and installation cost of £3,000–£8,000 that fails at year 5 due to lack of maintenance has an effective annual cost of £600–£1,600. The same pump, properly maintained for 15 years, delivers an effective annual cost of £200–£533 — a saving of 60–67% on the capital investment alone, before emergency labour costs are considered (Rafsun 2025).

Worn impellers reduce pump efficiency progressively over time. As the impeller degrades, energy consumption rises to maintain the same output — meaning an unmaintained pump is also an increasingly expensive pump to run, even before it fails.

An image of an engineer programming a booster set

2. Preventing Unplanned Downtime

The financial consequences of unplanned downtime in industrial and commercial settings are severe and well-documented:

  • A 2023 survey by ABB, conducted across 3,215 plant maintenance decision-makers globally, found that unplanned outages cost the typical industrial business approximately £92,000 per hour (ABB 2023).
  • The MaintainX 2024 State of Industrial Maintenance Report found that in 2024, the average cost of one hour of unplanned downtime hovers at around £20,000, rising to over £370,000 per hour for larger organisations (MaintainX 2024) .
  • According to IDS-INDATA over 80% of industrial businesses experienced unplanned downtime in the last three years, with each incident lasting an average of four hours(IDS Indata 2025). UK manufacturers alone are estimated to lose around 49 hours per company per year to machine failures.
  • Pumps & Systems confirmed in a 2024 study that 82% of companies experienced at least one unplanned downtime incident in the previous three years — most suffered two or more (Pumps & Systems 2025).

Even outside heavy industry, the consequences of pump failure are significant. A failed sewage pump in a hotel or block of flats triggers immediate health, safety, and regulatory obligations. A failed dewatering pump on a construction site can flood an excavation within hours, causing structural damage and delays costing tens of thousands of pounds.

The British Pump Manufacturers Association (BPMA) has long maintained that over the lifetime of a pump system, 85% of total costs are attributable to energy, 10% to maintenance, and just 5% to initial purchase price (BPMA 2022). Skipping the 10% maintenance spend does not eliminate costs — it transfers them to the 85% energy budget (through inefficiency) and creates emergency repair and downtime costs that dwarf the maintenance investment avoided.

3. Maintaining Energy Efficiency

A submersible pump with worn components — particularly a degraded impeller or a failing mechanical seal — works harder to deliver the same output, drawing more current and consuming more electricity. Atlantic Pumps notes that the cost of maintenance must be weighed against the cost of pump failure and also against the daily energy costs of running worn equipment: pumps operating at peak condition are significantly more cost-effective to run than those with heavily worn parts (Atlantic Pumps 2023).

In an era of elevated UK commercial energy tariffs, this is not a minor consideration. A pump consuming 10–15% more electricity than its rated efficiency due to worn internals represents a quantifiable, ongoing cost that a planned pump service would eliminate.

What a Professional Submersible Pump Service Includes

A professional submersible pump service is not simply a visual inspection. At Mawdsleys Pump Services, our engineers work through a detailed service checklist on every visit (Mawdsleys Pump Services — Maintenance & Repair), covering:

  • Visual inspection — casing, cable entry, discharge pipework, and ancillary components for signs of corrosion, physical damage, or leakage
  • Mechanical seal inspection — oil chamber sampling on oil-filled motors to check for milky oil indicating water ingress; seal face condition assessment
  • Impeller check — inspection for wear, erosion, clogging, or cavitation damage
  • Electrical testing — motor insulation resistance (megohmmeter test), current draw on each phase compared to baseline, and cable integrity checks
  • Float switch or level sensor testing — operation at set points, freedom of movement, and freedom from debris interference
  • Discharge and non-return valve check — valve seating, debris, and correct operation
  • Vibration and noise assessment — listening and measuring for bearing wear, impeller imbalance, or cavitation indicators
  • Control panel review — fault history, overload settings, duty/standby rotation, and alarm test
  • Performance test — flow rate and head readings compared against the commissioning baseline to identify efficiency degradation
  • Full written service report — with photographic evidence, findings, and recommended actions

How Often Should Each Type of Submersible Pump Be Serviced?

Service frequency is not one-size-fits-all. It is determined by pump type, operating environment, fluid handled, duty cycle, and criticality of the application. The table below sets out the recommended submersible pump maintenance intervals for each major pump type.

Pump Type

Typical Application

Operating Conditions

Recommended Service Interval

Key Maintenance Priorities

Submersible Sewage Pump

Hotels, blocks of flats, commercial buildings, municipal lift stations

Continuous duty; handles solids and organic matter; high cycle frequency

Every 6 months (biannual); critical installations quarterly

Impeller/grinder condition, seal integrity, non-return valve, float switch, cable

Submersible Drainage / Sump Pump

Basements, cellars, car parks, plant rooms, commercial buildings

Intermittent; clean to mildly contaminated water

Annually (minimum); test biannually

Float switch, discharge pipe, check valve, battery backup test

Submersible Borehole / Well Pump

Water supply, irrigation, groundwater abstraction

Continuous or on-demand; deep installation; often hard or mineralised water

Annually (minimum); water quality check every 6 months

Motor insulation, impeller wear, rising main integrity, pressure switch

Submersible Dewatering Pump

Construction sites, mining, tunnelling, flood response

Intermittent to continuous; abrasive, solids-laden fluid; harsh environment

Before and after each deployment; every 3 months on permanent installations

Impeller wear, seal condition, intake screen, cable and connector integrity

Submersible Slurry Pump

Mining, dredging, quarrying, industrial sludge

Continuous; highly abrasive fluid; high wear rate on components

Every 3 months (quarterly); wear parts inspection monthly

Wear plate and impeller thickness, seal condition, agitator, discharge pipe erosion

Submersible Sewage Grinder Pump

Low-pressure sewer systems, below-drain-level basements

Continuous; solid waste including fibrous material; high mechanical stress

Every 6 months; grinder blade inspection quarterly

Grinder blade sharpness, seal integrity, motor current draw, non-return valve

Submersible Stormwater Pump

Surface water drainage, flood risk management, highway drainage

Seasonal or event-driven; can sit idle for months then run continuously

Pre-season inspection (annually minimum); test run quarterly

Float/sensor operation, impeller debris clearance, discharge condition, electrical test

Submersible Process Pump (Industrial)

Chemical processing, food and beverage, oil and gas

Continuous; potentially corrosive, viscous, or high-temperature fluids

Every 3–6 months depending on fluid aggressiveness

Seal material compatibility, motor insulation, impeller and casing corrosion, flow performance

Notes on the table:

  • “Annually” means a full professional pump service including disassembly, inspection, and performance test — not a visual check.
  • “Test biannually” means a functional test (run the pump, verify activation, check discharge) without full disassembly.
  • Manufacturer service requirements must always be observed as a minimum. Where a manufacturer specifies more frequent service intervals than those above, the manufacturer’s schedule takes precedence.
  • Pumps operating in duty/standby pairs must have standby units exercised regularly — typically monthly — to prevent stagnation and ensure readiness.

The Cost of Reactive vs. Planned Pump Maintenance

The industry term for waiting until a pump fails before servicing it is “run-to-failure” — or reactive maintenance. Despite the evidence against it, MaintainX’s 2024 report found that 57% of facilities still rely on some form of run-to-failure maintenance(MaintainX 2024).

The cost difference between reactive and planned pump maintenance is stark:

  • Emergency callout labour typically commands a premium of 50–100% over standard planned visit rates, particularly for out-of-hours attendance.
  • Emergency parts — sourced urgently rather than from stock — carry significant surcharges and can involve lead times that extend downtime by days.
  • Consequential damage — a failed mechanical seal that goes undetected floods the motor; a clogged impeller that causes overheating burns out the windings. What would have been a £200 seal replacement becomes a £2,000–£5,000 motor rewind or full pump replacement.
  • Downtime costs — the operational cost of downtime consistently dwarfs the cost of the maintenance that would have prevented it.

65% of companies now use a computerised maintenance management system (CMMS) to manage maintenance activities, reflecting a clear industry shift toward planned, proactive pump service regimes (MaintainX 2024).

How Mawdsleys Pump Services Can Help

At Mawdsleys Pump Services, we specialise in submersible pumps across every application — sewage, borehole, well, stormwater, and industrial process. Our submersible pump service contracts are structured around your specific pump type, operating conditions, and criticality requirements — not a generic annual-visit template.

Submersible Pump Maintenance Contracts — We offer annual, biannual, and quarterly pump maintenance contracts with agreed response times for emergency callouts outside scheduled visits. Every service visit produces a full written report with photographic evidence, giving you documented proof of compliance and a clear record of your asset’s condition.

24/7 Emergency Submersible Pump Repair — When a pump fails outside scheduled maintenance, our engineers are available 24 hours a day, 365 days a year. We carry common wear parts — mechanical seals, impellers, float switches, and bearings — for all major brands to maximise first-visit resolution.

Our Google Reviews reflect what our customers tell us consistently: rapid attendance, precise communication, and work completed right the first time.

At minimum, every submersible pump must receive a full professional submersible pump service once per year. Pumps handling sewage, abrasive slurry, or operating in continuous-duty industrial environments typically require biannual or quarterly service. The correct interval depends on the pump type, fluid handled, and duty cycle and housekeeping— the table in this article provides type-specific guidance.

An unserviced pump will degrade progressively. Wear on the impeller reduces efficiency and increases energy consumption. Mechanical seal deterioration eventually allows water ingress into the motor. Debris accumulation on the float switch causes unreliable activation. Left unaddressed, these issues compound into motor failure — converting what would have been a routine pump service cost into a full pump replacement and, potentially, significant damage to the property the pump was protecting.

A properly maintained, high-quality submersible pump typically lasts 10 to 15 years, with some exceeding 20 years in optimal conditions. Without maintenance, 5 years or less is a realistic expectation in demanding applications. The difference is a direct result of planned submersible pump maintenance.

Yes, in almost every commercial or industrial application. A planned pump maintenance contract fixes your service costs at a predictable annual figure, eliminates emergency premium callout charges, extends asset life, and protects against the consequential costs of downtime. For any pump that is critical to building operations — sewage, drainage, water supply — a service contract is not a discretionary spend; it is risk management.

Basic checks — listening for unusual noise, monitoring current draw, verifying float switch operation — can be carried out by a trained operator. However, a full submersible pump service requires a megohmmeter for motor insulation testing, specialist knowledge to interpret oil chamber samples for seal condition, and calibrated equipment to compare flow and pressure performance against baseline. It must be carried out by a qualified engineer.

Warning signs requiring immediate pump service assessment include: reduced flow or pressure at the discharge point; unusual grinding, rattling, or humming during operation; increased current draw noted on the control panel; tripped overloads or repeated faults on the control panel; water around the pump housing or wet well; and activation delays or continuous running that deviates from the normal cycle. Any one of these signals warrants prompt attention — do not wait for the scheduled service date.

Yes. A standby pump that sits idle but is never tested or serviced is a pump that will fail the moment it is needed. Standby units must be exercised — run under load — at least monthly to prevent bearing stagnation and verify operational readiness. They require the same annual full submersible pump service as duty units.

Booster Pump FAQs

References

Grand View Horizon, 2025, UK Electric Submersible Pump Market Size & Outlook,  https://www.grandviewresearch.com/horizon/outlook/electric-submersible-pump-market/uk

Rafsun, 2025, How many years does a submersible pump last?, https://www.rafsun.com/how-many-years-does-a-submersible-pump-last/,

ABB, 2023, ABB survey reveals unplanned downtime costs $125,000 per hour, https://new.abb.com/news/detail/107660/abb-survey-reveals-unplanned-downtime-costs-125-000-per-hour

MaintainX 2024, The State of Industrial Maintenance 2024, https://software.getmaintainx.com/hubfs/State%20of%20Industrial%20Maintenance%202024/2024%20State%20of%20Industrial%20Maintenance%20Report.pdf

IDS Indata, 2025, The Real Cost of Downtime in Manufacturing: Sector-by-Sector Breakdown and 2025 Forecasting, https://idsindata.co.uk/manufacturing-downtime-costs-and-forecasting/

Pumps & Systems, 2025, Preventative & Predictive Maintenance Reduces Unplanned Downtime, https://www.pumpsandsystems.com/article/preventative-predictive-maintenance-reduces-unplanned-downtime/

BPMA, 2022, Optimising pump systems to save electrical energy, https://www.bpma.org.uk/news-article/638888250dba6/Optimising-pump-systems-to-save-electrical-energy

Atlantic Pumps, 2023, Your Essential Guide to Submersible Pump Maintenance,  https://atlanticpumps.co.uk/blogs/submersible-pump-maintenance/

An image of a cess pit

The Dangers of Septic Tanks and Cesspits

If your home or business is out in the countryside or otherwise ‘off the grid’, you may use an alternative sewage treatment method such as a septic tank or cesspit/cesspool.

As well as upcoming changes to legislation making sewage treatment plants the only approved method of waste treatment, septic tanks and cesspools pose a number of risks and can damage the environment around them.

Find out more about the hidden dangers of septic tanks and cesspits and why you should upgrade to a full sewage treatment plant in our latest blog post.

What’s the Difference Between a Septic Tank and a Cesspit?

Contrary to popular belief, a cesspit and a septic tank are two different things – the fundamental difference is that within a cesspit, sewage is simply stored, the cesspit is then emptied by a professional when it is full.

On the other hand, within a septic tank, sewage is stored and partially broken down before being discharged, whilst safer than raw sewage, this discharge is still considered to cause damage to the environment.

The General Binding Rules 2020

The General Binding Rules were first released in 2015 and come into force in 2020. If you have a septic tank that discharges into a body of water such as a stream, you’ll need to upgrade to a sewage treatment plant before 2020.

Additionally, if your current set up is found to be negatively impacting its surrounding environment, or if you are looking to sell your property, you will be required to upgrade sooner.

Dangerous Gases

Due to the nature of what is stored within them, both cesspits and septic tanks contain gases that are potentially harmful to health. Whilst there is no risk when they are sealed in the tank, there are several dangers they hold including:

  • Rupture of the tank – This can be caused by tree roots and building works and will result in harmful gases being released in the vicinity of the septic tank or cesspit.
  • Lid collapse – Septic tanks generally have a concrete lid to keep them secure. Over time, the gases can eat away at the lid, causing it to become weaker and increasing the risk of collapse.
  • Fires – The gases produced by cesspits are extremely flammable, a naked flame should never be anywhere near a cesspit.
A label "poison gas" on a container

Flooding

Flooding of a septic tank can be caused by several circumstances including heavy rain, flooding, blocked pipes, damage to internal components and saturated soil preventing discharge.

If your septic tank is flooding, you will need to reduce or completely restrict the amount of water that is used to avoid contracting an illness and making the problem worse, you find raw sewage backing up into your sinks and toilets.

Additionally, you will need to contact a professional to inspect and service the tank, failure to do so can leave you liable to legal action should the flooding cause a health or pollution risk.

Flooding can cause a lot of damge to your property or the facilities which you manage!

In an emergency call us on 0117 954 8030

An image of highly contaminated water

Pollution

As cesspits are sealed, they generally only cause damage to the environment around them if they are damaged. However, as septic tanks discharge into bodies of water, they can cause serious damage to the environment, killing wildlife and contaminating private water supplies.

In addition to sewage, a septic tank or cesspit will contain anything that is flushed down the toilet or poured down the sink, this often includes chemical cleaning products, kitchen oils, detergent and human waste.

Inspection Costs

The final danger of cesspits and septic tanks is the amount they will cost you! In addition to installation costs, you will need to pay for regular emptying, inspection and servicing of your cesspit or septic tank in order to prevent it from posing a risk.

Furthermore, if your property currently relies on a septic tank or cesspit, you will have trouble selling it, as the new owners will have to take into consideration all the costs associated with maintaining it and the inevitable cost of upgrading to a sewage treatment plant.

Nationwide Sewage Treatment Plant Installation, Repair and Maintenance

If your property currently handles sewage through a septic tank or cesspit, you will need to upgrade it before 2020. At Mawdsleys Pumps, we provide a nationwide service for the installation, repair and maintenance of sewage treatment plants; we’ll even remove and dispose of the old unit for you.

For more information, give one of our expert team a call today on 0117 954 8030

If your home or business is out in the countryside or otherwise ‘off the grid’, you may use an alternative sewage treatment method such as a septic tank or cesspit/cesspool.

As well as upcoming changes to legislation making sewage treatment plants the only approved method of waste treatment, septic tanks and cesspools pose a number of risks and can damage the environment around them.

Find out more about the hidden dangers of septic tanks and cesspits and why you should upgrade to a full sewage treatment plant in our latest blog post.

What’s the Difference Between a Septic Tank and a Cesspit?

Contrary to popular belief, a cesspit and a septic tank are two different things – the fundamental difference is that within a cesspit, sewage is simply stored, the cesspit is then emptied by a professional when it is full.

On the other hand, within a septic tank, sewage is stored and partially broken down before being discharged, whilst safer than raw sewage, this discharge is still considered to cause damage to the environment.

The General Binding Rules 2020

The General Binding Rules were first released in 2015 and come into force in 2020. If you have a septic tank that discharges into a body of water such as a stream, you’ll need to upgrade to a sewage treatment plant before 2020.

Additionally, if your current set up is found to be negatively impacting its surrounding environment, or if you are looking to sell your property, you will be required to upgrade sooner.

Dangerous Gases

Due to the nature of what is stored within them, both cesspits and septic tanks contain gases that are potentially harmful to health. Whilst there is no risk when they are sealed in the tank, there are several dangers they hold including:

  • Rupture of the tank – This can be caused by tree roots and building works and will result in harmful gases being released in the vicinity of the septic tank or cesspit.
  • Lid collapse – Septic tanks generally have a concrete lid to keep them secure. Over time, the gases can eat away at the lid, causing it to become weaker and increasing the risk of collapse.
  • Fires – The gases produced by cesspits are extremely flammable, a naked flame should never be anywhere near a cesspit.
A label "poison gas" on a container

Flooding

Flooding of a septic tank can be caused by several circumstances including heavy rain, flooding, blocked pipes, damage to internal components and saturated soil preventing discharge.

If your septic tank is flooding, you will need to reduce or completely restrict the amount of water that is used to avoid contracting an illness and making the problem worse, you find raw sewage backing up into your sinks and toilets.

Additionally, you will need to contact a professional to inspect and service the tank, failure to do so can leave you liable to legal action should the flooding cause a health or pollution risk.

Flooding can cause a lot of damge to your property or the facilities which you manage!

In an emergency, call us on
0117 954 8030

An image of highly contaminated water

Pollution

As cesspits are sealed, they generally only cause damage to the environment around them if they are damaged. However, as septic tanks discharge into bodies of water, they can cause serious damage to the environment, killing wildlife and contaminating private water supplies.

In addition to sewage, a septic tank or cesspit will contain anything that is flushed down the toilet or poured down the sink, this often includes chemical cleaning products, kitchen oils, detergent and human waste.

Inspection Costs

The final danger of cesspits and septic tanks is the amount they will cost you! In addition to installation costs, you will need to pay for regular emptying, inspection and servicing of your cesspit or septic tank in order to prevent it from posing a risk.

Furthermore, if your property currently relies on a septic tank or cesspit, you will have trouble selling it, as the new owners will have to take into consideration all the costs associated with maintaining it and the inevitable cost of upgrading to a sewage treatment plant.

Nationwide Sewage Treatment Plant Installation, Repair and Maintenance

If your property currently handles sewage through a septic tank or cesspit, you will need to upgrade it before 2020. At Mawdsleys Pumps, we provide a nationwide service for the installation, repair and maintenance of sewage treatment plants; we’ll even remove and dispose of the old unit for you.

For more information, give one of our expert team a call today on 0117 954 8030

2 engineers in hi vis jackets in front of two Mawdsleys Vans

Dirty Water Pumping Systems – Maintenance and Common Issues

Wastewater pumps — sometimes called dirty water pumps — are used wherever gravity alone can’t move water where it needs to go: pumping sewage into a main sewer, draining a commercial yard, transporting waste at a treatment plant, or managing dirty water and yard run-off on farms. The right pump for the job depends on the flow rate, pressure and distance the water needs to travel.

There’s never a convenient time for a wastewater pump to fail, but certain conditions make failure more likely. Heavy rainfall and falling leaves — most common in autumn — significantly increase the risk of blockages, while general wear over time affects seals, floats and electrical components year-round. Regular wastewater pump maintenance is the most effective way to prevent both.

This guide covers the most common problems we see in wastewater and sewage pumping systems, what causes them, and how a planned maintenance schedule prevents them from becoming costly breakdowns or emergency sewage pump repairs.

Common Problems with Wastewater Pumping Systems

Dirty Water Pump On Farm

Pump Tripping the MCB (Miniature Circuit Breaker) This is often a sign that water has entered the pump’s motor winding. Heavy rainfall — more common in autumn than summer — increases the likelihood of this fault occurring. It can usually be resolved with a pump rewind; our dedicated rewind workshop in Bristol means we can have your pump back up and running quickly.

Phase Convertor Failure Over time, the phase convertor in a pump can fail, identifiable by underperformance or complete pump failure. We can overhaul your phase convertor at a fraction of the cost of full pump replacement.

Blockage by Rag This is one of the most common causes of failure in submersible wastewater and sewage pumps. In some cases it leads to complete stoppage, resulting in costly downtime and potential pump damage.

Floats Sticking Caused by grease build-up around the float switches. This can be reduced by fitting a grease trap, which separates fats and grease from wastewater before it reaches the pump.

Sump Pump Maintenance

Sump pumps are a specific type of wastewater/dirty water pump used to remove groundwater, flood water or surface water from basements, cellars and below-ground spaces. Many of the same faults covered above — float sticking, rag and debris blockages, electrical tripping — apply equally to sump pumps, but the consequences of failure are usually faster and more visible: a failed sump pump can let water levels in a basement rise within hours.

Regular sump pump maintenance should include float switch testing, a check of the non-return valve, a visual inspection for debris in the sump itself, and a test run to confirm the pump cuts in and out at the correct levels.

If you’re looking for sump pump maintenance near you, Mawdsleys covers Bristol, Bath, Cardiff, Gloucester, Exeter, Swindon, Southampton and the wider South West and South Wales region — call 0117 954 8030 to arrange a visit or discuss a maintenance contract. Find out more about basement and sump pumps →

Regular Pump Maintenance Plan

All of the issues above can be avoided with a maintenance plan, where every element of your wastewater pumping system is checked, maintained and any worn parts replaced before the pump actually fails. It’s always more cost-effective to prevent a pump failure than to wait for it to happen — not only do you avoid downtime, but you reduce the risk of consequential damage to the wider system, which is typically far more expensive than replacing a single worn part.

Early signs of potential pump or motor failure can be identified during routine maintenance visits. Mechanical seals and O-rings are checked as standard, and early detection prevents the kind of seal failure that leads to leaks, contamination risk and unplanned downtime.

A typical wastewater pump maintenance visit includes:

  • Visual inspection of the pump, motor and chamber
  • Float switch and level control testing
  • Non-return valve check
  • Motor insulation and current draw testing
  • Mechanical seal and O-ring inspection
  • Wet well or chamber cleaning where required
  • Written condition report

What to Do If Your Wastewater Pump Has Already Failed

Sewage Pump Repair — What to Do If Prevention Comes Too Late

If your wastewater or sewage pump has already failed — tripping the electrics, backing up toilets, or showing signs of reduced output — maintenance advice won’t help you in the moment. At that point, you need a sewage pump repair, not a service plan.

Mawdsleys provides emergency sewage pump repair across Bristol and the South West, available 24/7, 365 days a year. Many faults — including the ones covered above — can be repaired on-site during a single visit. Where a pump needs full strip-down or motor rewinding, it’s taken to our Bristol workshop and returned ready for reinstallation.

Call 0117 954 8030 for immediate advice or to arrange a repair visit. Find out more about our sewage pump repair service →

 

Agricultural Dirty Water Pumping Systems for Farmers

Mawdsleys has worked with farmers across the South West for many years, and we understand the agricultural industry’s specific water disposal needs. Whether you’re managing yard run-off, slurry disposal or dirty water from livestock housing, we offer practical, cost-effective pumping solutions based on a site visit, a full survey, and a no-obligation quote.

Our dirty water pumping systems for agricultural use come with a 2-year guarantee and our standard 24-hour breakdown call-out service.

Our Dirty Water Disposal System

  • Our standard system uses a submersible macerator pump, incorporating a non-return valve and anti-siphon device – eliminating air-locking and pump cycling.

  • A control system is provided and is monitored by a green bulkhead light which provides a visual indication that the system is ready for use.
  • The pump delivers out to manually movable sprinklers, generally 2 or 4 dependant on your needs, with each discharge 36 LPM (500 GPH) at a radius of 15 metres (49 feet).
  • The pump is generally installed on a fabricated steel base, supporting the pump in a position approximately 30 cm above the bottom of the pit providing a means of safely lifting the pump.
  • Our pumps are constructed with standard components so that replacement items are readily available for immediate dispatch if required.

Talk To Our Expert Team Today

If you need advice on wastewater pump maintenance, a sewage pump repair, or sump pump maintenance near you, our team covers Bristol, Bath, Cardiff, Gloucester, Exeter, Swindon, Southampton, Dorset, Cornwall and the wider South West and South Wales region.

Whether you need a free, no-obligation quote, a one-off repair, or want to discuss an ongoing maintenance contract, call us on 0117 954 8030.