Diamond sewage treatment systems are designed for domestic properties of up to 20 population equivalent. They consist of a GRP tank installed below ground with a green 600mm access cover at ground level.

Systems contain no moving parts or complicated control panels. A 180W air blower operates continuously for sludge activation.

Diamond systems can achieve a discharge standard of 20mg/l BOD and 20mg/l suspended solids.

A unique internal weir design ensures continuous high performance by reducing the impact of surges from the flow of sewage and wastewater

Using well-established technology the Diamonds design meets high standards of performance testing carried out by NSF Organisation - a leading international environmental test agency.

• 2-3 year desludging intervals - continuous recirculation gives virtually total solids degradation
• Odourless - with no primary tank required, the sludge is prevented from settling and turning septic

• Easy installation - design reduces excavation costs
• Robust construction alleviates need for concrete backfill
• Low operation costs from the small efficient compressor

• Low visual impact - 600mm cover, flush with the ground
• Reliable operation - simple design, no internal moving parts

Over 20,000 Diamond units have been installed worldwide.

A design, installation and maintenance service is also offered.