CPD Waste Water Ltd — professional sewage treatment services

Marsh Sewage Treatment Plant Servicing

Specialist servicing, fault finding and repairs for Marsh sewage treatment plants across Hampshire, Surrey and West Sussex. Available 7 days a week including emergency call-outs.

Marsh System Service Specialists

Expert Marsh Sewage Treatment Plant Servicing

CPD Waste Water Ltd provides specialist servicing and repair for Marsh sewage treatment plants across Hampshire, Surrey and West Sussex. Marsh systems are a popular choice for rural properties and small developments, and our engineers have extensive experience maintaining them to the manufacturer's specification and Environment Agency standards.

Marsh sewage treatment plants use a sequential batch reactor (SBR) or extended aeration process to treat domestic wastewater. These systems rely on a correctly functioning aeration blower and control panel to maintain the biological treatment cycle. Regular servicing is essential to ensure the blower, diffusers, and control systems are operating correctly and that the system continues to produce a clean, compliant effluent.

Annual servicing & maintenance

Fault finding & diagnostics

Emergency call-outs 7 days a week

Same-day response available

What's Included in a Marsh Service

  • Inspection and testing of the aeration blower and air diffusers
  • Control panel check and alarm test
  • Desludging and removal of settled solids
  • Inlet and outlet pipework inspection and clearance
  • Effluent quality check
  • Check of all mechanical and electrical components
  • Written service report and compliance certificate
  • Recommendations for any remedial works

Common Marsh Faults We Fix

  • Blower failure causing loss of aeration and treatment
  • Blocked or fouled air diffusers reducing oxygen transfer
  • Control panel faults or alarm activation
  • Excessive sludge accumulation
  • Inlet blockages or surcharging
  • Effluent quality deterioration due to organic overload
  • Float switch or level sensor failure

Why Choose CPD Waste Water for Your Marsh System?

Our engineers are experienced with the full range of Marsh treatment plant models and understand the specific maintenance requirements of SBR and extended aeration systems. We carry blower spares and common electrical components on our vans, allowing us to resolve many faults on the first visit. We also provide a clear written report after every service so you have a full record for Environment Agency compliance purposes.

25+

Years experience

7 days

Emergency cover

3 counties

Service area

Marsh Sewage Treatment — Frequently Asked Questions

How often does a Marsh sewage treatment plant need servicing?

Marsh recommends annual servicing, and this is typically a condition of your Environment Agency discharge exemption. We recommend scheduling your service at the same time each year to maintain compliance.

My Marsh system alarm is going off — what should I do?

An alarm usually indicates a blower fault, high water level, or control panel issue. Do not ignore it — call us on 01252 985722. We offer emergency call-outs 7 days a week and can usually attend the same day.

Can you service a Marsh system that hasn't been maintained for several years?

Yes. We regularly bring neglected systems back into compliance. This may involve a more thorough desludge, blower service, and diffuser clean, but in most cases we can restore the system to full working order.

Do you cover the whole of Hampshire and Surrey for Marsh servicing?

Yes. We cover Hampshire, Surrey, and West Sussex, including all rural areas. Call us to confirm coverage for your specific location.

Book Your Marsh Service Today

Call us on 01252 985722 or 07900 906195, or send us an email at Contactus@cpdwastewater.com. We cover Hampshire, Surrey, and West Sussex and are available 7 days a week for emergency call-outs.