Use of rainwater for a grammar school

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Project

Cecilien Gymnasium Düsseldorf / Germany / 2019

Builder

City of Düsseldorf

Application

Regenwasser-Nutzung

Products

Regenwasserzentrale  14-40-P

Concrete storage tank 20 m³ with PURAIN 200

Planning

Start of planning2016
Useful volumeapprox. 20m³
Duty point pump technology8,3 m³ / 3 bar
Length of the longest pressure lineapprox. 60m

Description

In this project for the city of Düsseldorf, the task was to ensure the use of rainwater for 400 pupils and teachers. Via an engineering office from Aachen, which has already had good experience with our products as well as our service, we were asked for the dimensioning of the storage volume and the pump and control technology.

A two-tank system made of reinforced concrete was implemented.  The inflowing rainwater of approx. 1,200 m² is pre-cleaned by a PURAIN PR200 rainwater filter. Since a high degree of simultaneity for the connected WC systems had to be taken into account, a PROFI-14-40 (formerly RWZ-14-40-P) pump and control centre was used.