Best water quality

The PURAIN Rainwater filter supplies optimum water quality to your tank. The PURAIN rainwater filter is specifically designed to filter rainwater…

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Self cleans with 98 % efficiency

Light rainfall events account for 97% of total annual rainfall. Therefore, it is particularly important to collect this light rain.

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The possibility to save drinking water has enhanced strongly the last years.

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A rainwater filter cleaning itself by the principle of the hydraulic jump.

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The DRAINMAX tunnel infiltration system: The only plastic trench with flushable  ground.

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The optimized water pump station for rainwater and greywater utilization in every planned construction.

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