Description

Klargester Gamma Twin Stage: Complete Expert Guide

For households and properties not connected to mains drainage, choosing the right wastewater solution is essential. One of the most reliable and efficient systems available today is the Klargester Gamma Twin Stage, a modern septic tank developed by Kingspan, a trusted global leader in water and environmental products.

Having worked with wastewater treatment systems for years, I can say with confidence that the Klargester Gamma Twin Stage is not just another septic tank—it’s a long-term, environmentally responsible solution designed with both homeowners and regulators in mind. Its twin-chamber settlement process, lightweight polyethylene build, and shallow-dig design make it stand out against traditional systems.

What is the Klargester Gamma Twin Stage?

The Klargester Gamma Twin Stage is a two-chamber septic tank designed to treat domestic wastewater before safely releasing clarified effluent into a soakaway or drainage field. Unlike older single-chamber tanks, the twin-stage system ensures higher treatment quality and better protection for the surrounding environment.

Key Benefits:

• Two-Stage Treatment Process – Settles solids and improves effluent clarity.

• Durable Polyethylene Build – Corrosion-resistant, lightweight, and robust.

• Shallow Dig Installation – Requires less excavation, saving time and cost.

• Regulatory Compliance – Certified to BS EN 12566-1, meeting UK and EU standards.

• Long Service Life – Built to last more than 25 years with proper maintenance.

How the Twin Stage System Works

The Gamma Twin Stage works by separating and settling waste in two chambers:

1. Primary Chamber – Heavier solids sink to the bottom as sludge, while oils and fats rise to the surface.

2. Secondary Chamber – Partially clarified liquid flows into the second chamber, where finer particles settle further.

3. Final Effluent Discharge – The treated effluent then passes into a soakaway or drainage field for natural filtration.

This two-step process produces cleaner effluent, extends the lifespan of soakaways, and reduces the risk of pollution.

Installation Guide: Klargester Gamma Twin Stage

Although installation must be carried out by qualified professionals, understanding the process helps homeowners know what to expect.

Step 1: Site Assessment

• Check soil type, water table levels, and suitability for a soakaway.

• Plan for desludging access for future maintenance.

Step 2: Excavation

• Dig a shallow excavation suited to the Gamma’s compact design.

• Reduced excavation means less disruption and lower costs.

Step 3: Base Preparation

• Lay a stable, level base of gravel or concrete.

• This ensures correct positioning and prevents future settling.

Step 4: Tank Placement

• Position the Gamma Twin Stage tank using its lifting points.

• Its lightweight design often removes the need for heavy lifting equipment.

Step 5: Pipe Connections

• Connect the property’s wastewater inlet pipe.

• Connect the outlet pipe to the soakaway or drainage field.

• Ensure all seals are watertight.

Step 6: Backfilling

• Fill the tank with clean water to balance pressure.

• Backfill evenly with gravel or concrete, compacting as you go.

Step 7: Testing and Commissioning

• Check all joints and seals.

• Confirm smooth water flow and proper effluent discharge.

Technical Specifications: Klargester Gamma Twin Stage (4,000 Litre Model)

FAQs: Klargester Gamma Twin Stage

1. How often should the Klargester Gamma Twin Stage be emptied?

Every 12 to 18 months, depending on the size of the household and wastewater volume.

2. Can it be installed in all soil types?

It works best in free-draining soils. For clay or poor-draining areas, a specially designed soakaway may be required.

3. Why choose a twin-stage system over a single-stage tank?

The two-stage process ensures cleaner effluent, protects the soakaway from clogging, and reduces environmental risks.

4. How long will it last?

With correct installation and routine servicing, the Gamma Twin Stage can last 25+ years.

5. Is it environmentally friendly?

Yes. Its twin-stage separation improves effluent clarity, reduces pollution risk, and ensures compliance with modern regulations.

Expert Insights: Why Homeowners Choose the Klargester Gamma Twin Stage

From experience, I recommend the Gamma Twin Stage for homeowners who want:

• Cost Savings on Installation – Thanks to shallow-dig technology.

• Peace of Mind – Cleaner effluent means fewer drainage issues.

• Low Maintenance – Only needs desludging every 12–18 months.

• Future-Proofing – Fully compliant with UK and EU discharge standards.

• Durability – Resistant to cracking, rust, and chemical corrosion.

It’s especially popular in rural areas where connection to mains drainage is not feasible.

Tips for Long-Term Use

1. Regular Maintenance – Desludge on schedule to avoid problems.

2. Protect the Bacteria – Avoid flushing harsh chemicals that disrupt natural processes.

3. Size Appropriately – Always choose a tank that fits household demand, with room for future growth.

4. Monitor Drainage – Keep an eye on the soakaway performance for long-term efficiency.

Final Thoughts

The Klargester Gamma Twin Stage is one of the most reliable, efficient, and homeowner-friendly septic solutions available. Its twin-chamber design produces cleaner effluent, its lightweight polyethylene construction ensures easy installation, and its shallow-dig feature makes it cost-effective compared to older alternatives.

Whether you are building a new property or replacing an outdated tank, the Gamma Twin Stage is a system built to last and designed to protect both your home and the environment.