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  • Kellari 2 cellar

    Plastic cellar Kellari 2 - fully completed cellar in 1 day. Easy to install and easy to use.

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    Kellari 2 cellar
  • Kellari 5 cellar

    The practical cellar Kellari 5 is designed specifically for people who think about the future. Twelve large shelves, around the...

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    Kellari 5 cellar
  • Kellari 7 cellar

    The spacious and aesthetic cellar Kellari 7 is equipped with classic stairs for a comfortable descent. Due to the partial...

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    Kellari 7 cellar

Rainwater Treatment Systems

Kolo Järvi System solution for collection, regeneration, and reuse of rainwater, sewerage water, and wastewater The average household water consumption is about 130 liters for one person per day. With a price of $3.41/ m3 of water, the monthly amount of spent money and water by all of us just amazes. Drinking water consumption can be replaced by up to 50% by rainwater. It is absolutely useless to flush toilets, wash clothes and water gardens with expensive drinking water. More...


Purpose of the cellar Kellari cellars are designed to be used as storage tanks for food and liquids at constant low temperatures, for the placement of technological and other facilities in a closed chamber below the ground level. Kellari cellars are very strong underground structures, which can not be damaged by uniform soils pressure and groundwater. Description and specifications of the product The Kellari Сellar consists of a working chamber, the basis of the working chamber, the working chamber ceiling,...
We are Kolomaki Pietari LTD. We produce lots of different useful items, made of identical plastic sheets: local wastewater treatment station,  cellars, caissons, sand-separators, grease traps and so on.

Why we do what we do and why you should choose us

Back in 2013 the wastewater treatment stations and cellars market had a room for growth (quality and service levels are meant). We want our clients and professional market participants accustomed to new quality standards, which are set by us. Apparently, we’re good at it.

We never stop to grow up. We become better with our dealers, clients, and product. These three – are our main value. Clients enjoy themselves by using our products and by dealer maintenance. A dealer makes good wages by selling a good product. And the producer – Kolomaki Pietari LTD works for you. Your development is followed by us.

We take care about our clients and about the environment. All our products are made of ecological materials and all our output is aimed at the saving Earth’s resources and at making life easier and more comfortable for you.