Bio-purifier 4, for 1–⁠10 people – For grey water in a detached house or cottage

Biopurifier 4 for greywater homes and cottages – an efficient wastewater solution for larger use

The Biopurifier 4 for greywater homes and cottages is a biological greywater purifier designed specifically for larger applications – for example, for two households, a large family or year-round leisure use. The system processes up to 1200 liters of greywater per day and is suitable for use by 1–⁠10 people. This makes it the perfect choice for both private households and shared use between two properties.

Greywater purifier without chemicals or field

Biopurifier 4 is based on a biological purification process, where wastewater is aerated and purified by a microbial layer that forms on the surface of biomodules. This ensures effective and natural purification without the need for filter media, chemicals or a septic tank. The purified water can be safely directed into the ground, a rock bed or a ditch.

Biological purification system for 1–⁠10 people

The tank is made of seamless cast reinforced concrete, and its volume is designed for large amounts of water. The installation depth is 1715 mm and the total height is 2700 mm. The system is ideal for large properties where water use is continuous or seasonally high. Biopurifier 4 also operates reliably in winter.

Wastewater solution for shared use in cottages and detached houses

Biopurifier 4 for greywater homes and cottages is a flexible solution that adapts to different needs:

• For single-family homes with a larger number of users

• For shared use of two houses, for example semi-detached houses or as a joint solution between neighbors

• For cottages and holiday homes where use is intermittent but intensive

• For beach saunas and other properties located in environmentally sensitive areas

The system can be installed on almost all soils without an absorption field or soil materials, and it meets even the strictest environmental regulations.

Clean grey water from a detached house at low cost

Biopurifier 4 is almost maintenance-free. The only regular operation is to empty the sludge once a year. The air blower consumes only about 4 €/month in electricity. This makes the system both a practical and economical choice for treating greywater in a home or cottage.

Summary – why choose Biopurifier 4?

• Capacity for up to 10 people or two houses
• Suitable for home, cottage and shared use
• No filters, chemicals or soil
• Operates all year round
• Fast and space-efficient installation
• Durable concrete structure – long service life
• Low electricity consumption (approx. €4/month)
• Made in Finland

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