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Water units

Stolze develops, designs and builds its water units for water treatment, irrigation and fertigation in horticulture in-house. A custom unit is assembled for each system. This involves water units that disinfect the input water, irrigation units, automatic fertigation units and, for example, disinfection units for return flows of drain water.  

Projects water units

Curious about how other growers have approached this? Check out the irrigation units we’ve installed recently and get inspired by the different installations and systems.

Projects water units

Curious about how other growers have approached this? Check out the irrigation units we’ve installed recently and get inspired by the different installations and systems.

Water units water treatment

Custom-built units 

All water treatment units are tailored to the needs of the crop, the size of the greenhouse farm and the requirements of the grower. The specifications determine whether a standard unit for water treatment, irrigation and fertigation or a custom-made unit is the best fit.  

Reverse osmosis systems

A reverse osmosis system removes solid particles from the water, such as salts, lime, viruses and bacteria. In our reverse osmosis system, water flows under pressure, parallel to the membrane surface, with part of the water penetrating through the membrane. 

Priva Vialux M line 

The Priva Vialux M-Line is an affordable water disinfection solution with UV light, for treating both large and small quantities of water. The Priva Vialux M-Line is easy to maintain and we can easily adapt the modular system. 

Priva Vialux HD UV 

The Priva Vialux HD-UV has been specially developed for the pre and post-treatment of rainwater, surface water and drain water. It destroys all organisms, such as fungi, bacteria and viruses. This way you save on water, fertilisers and energy. 

Priva Vialux E-line 

The Priva Vialux E-Line can be used for the treatment of discharge water. The Vialux E-Line is a BZG-approved purification system, which means your horticulture business meets the water purification obligation.  

Irrigation units and fertiliser units

Customised units 

We also offer irrigation units and mixing tank units as customised solutions for irrigation systems, ebb and flow systems, drip systems, watering booms, roof sprinkler systems and disinfection systems.   

Priva Moisture Balance Module 

The Priva Moisture Balance Module is an optimal irrigation start solution for cultivation on substrate. The degree of irrigation is determined fully automatically based on three important influences: the amount of water that evaporates, the water consumption by the plant and the water content of the substrate.   

Priva Root Optimizer 

With the Priva Root Optimizer, watering is optimised automatically according to the circumstances, the status of the crop and the type of substrate. All this entirely based on the needs of the plant.  

Automatic tank filler

Dosing fertilisers correctly is time-consuming and requires accuracy to create a consistent recipe for your crop. An automatic tank filler takes this work off your hands and ensures accurate dosing at all times.