{"id":9874,"date":"2026-03-19T16:28:14","date_gmt":"2026-03-19T14:28:14","guid":{"rendered":"https:\/\/vestelli-fi.kehityspalvelin.fi\/tuote\/small-treatment-plant-iisi-kivi-with-additional-tank\/"},"modified":"2026-07-08T16:05:57","modified_gmt":"2026-07-08T13:05:57","slug":"small-treatment-plant-iisi-kivi-with-additional-tank","status":"publish","type":"product","link":"https:\/\/vestelli-fi.kehityspalvelin.fi\/en\/tuote\/small-treatment-plant-iisi-kivi-with-additional-tank\/","title":{"rendered":"Small treatment plant IISI KIVI with additional tank"},"content":{"rendered":"

IISI KIVI additional well renovation treatment plant \u2013 easy wastewater system renovation<\/strong><\/h2>\n

The IISI KIVI additional well renovation treatment plant is a domestic, efficient and easy-to-use solution for renovating an old wastewater system on a property. It is particularly suitable for sites where an old landfill or soil filtration plant is in use, which is clogged or no longer meets current wastewater regulations. If the property has an existing plastic 3-compartment or concrete 2-compartment septic tank, you can continue to use it and install the IISI KIVI treatment plant and IISI Additional Well as an extension without the need to build a completely new field. <\/p>\n

Continuous small-scale treatment plant for all household wastewater<\/strong><\/h2>\n

The IISI KIVI additional well renovation treatment plant effectively treats all household wastewater: wastewater from the kitchen, laundry rooms and toilets. The system operates continuously, which means that the water flows through the treatment plant by gravity without electrically controlled controls or complex automation. <\/p>\n

Biological purification takes place in a KIVI biofilter, where water is periodically circulated by a circulation pump. Phosphorus removal is effectively achieved by chemical precipitation, and solids settle in the property’s existing septic tank. The system meets regulatory requirements and is designed as a long-term solution for Finnish conditions. <\/p>\n

IISI KIVI solution: quick installation, minimal excavation work<\/strong><\/h2>\n

The IISI KIVI additional well renovation treatment plant is particularly popular due to its ease of use and quick installation. The IISI Additional Well is installed behind the existing septic tank, and the treatment plant itself is placed on top of it. The delivery package includes all the necessary parts: 2 penetration seals for the inlet and outlet drains and a 110 mm T-branch. The penetrations are made on site with the 140 mm box drill provided to the right height. <\/p>\n

Installation can be done quickly without major excavation work, and the system takes up little space on the plot, making it an excellent solution for small plots and locations where preserving the yard is important. <\/p>\n

Remediation treatment plant for leisure and permanent use<\/strong><\/h2>\n

The IISI KIVI renovation treatment plant also works reliably in leisure properties where use may be occasional. The treatment plant can withstand long downtimes and requires little maintenance. The system is designed so that it does not require constant monitoring, which makes it a particularly hassle-free solution for cottages and holiday homes. <\/p>\n

Finnish biofilter \u2013 durable and maintenance-free construction<\/strong><\/h2>\n

The IISI KIVI additional well rehabilitation treatment plant is made of high-quality, UV-protected and corrosion-free HD polyethylene. The structure is completely seamless and homogeneous, which guarantees the longevity and reliability of the treatment plant. It is an Avainlippu product, developed and manufactured in Finland for Finnish conditions. <\/p>\n

Summary \u2013 why choose IISI KIVI?<\/strong><\/h2>\n