1. It starts with biology

Greywater circulates through a trickle-bed bioreactor. Biological activity breaks down biodegradable material before the water moves through filtration and disinfection.

Upstream filters and a suitably sized collection tank help prepare the incoming water. Keeping concentrated chemicals and unsuitable waste out of the connected fixtures helps protect the treatment process.

2. The water gets a finer clean

The M800sx uses two nominal 0.025-micron ultrafiltration membranes. After biological treatment, water passes through this fine physical filter before reaching the UV stage.

This separation works differently from biological breakdown, adding another treatment barrier. Routine membrane backwash and excess process water return to the primary buffer in the described collection arrangement; servicing removes accumulated material and cleaning waste separately.

3. UV adds a final line of defence

A 25 W ultraviolet unit treats the filtered water before it enters the temporary internal tank. The cabinet then transfers treated water into external storage, ready for a separate pressure pump to supply the selected reuse outlets.

UV-fault protection stops discharge from the cabinet. Storage and delivery have their own coordinated controls and care requirements: UV treatment does not leave a disinfectant residual in the external tank or pipework.

Why bring all three together?

Biology, ultrafiltration and UV complement one another. The combination adds treatment steps beyond biology alone, with each stage maintained as part of the overall service plan.

Correct source water and regular care still matter. Unsuitable chemicals, unusual loading, a power outage or an overdue clean can affect operation. Follow the equipment’s fault and restart instructions when treatment has been interrupted.

How clean is the treated water?

The M800sx final-water design specification is BOD below 10 mg/L, TSS below 10 mg/L, E. coli below 1 cfu/100 mL and turbidity below 1 NTU. These figures describe the intended quality after the complete treatment process, not individual sample results.

For an explanation of the Level 1 reference, treatment terms and supporting evidence, visit Treatment Quality & Approvals. It also explains how water-quality requirements are set for the intended use.

Further model information: Aqua Clarus M800sx. Use the documents supplied for the current equipment when installing or servicing it.