Dimensioning

The required storage capacity can be calculated using the following diagram, depending on the number or people living in the household and the available roof surface. The storage capacity should be chosen so that a constant supply of rainwater is available for consumption . Experience has shown that rainwater requirements are between 40 – 50 litres per person per day.

Example

4 people x 45 litres  = 180 litres daily rainwater requirement.
Table for storage dimension, depending on the roof area and daily rainwater requirement.

Technical data

variocistern 750 variocistern 1000
Capacity: 750 l * number of tanks 1000 l * number of tanks
Capacity per tank: 750 Liter 1000 Liter
Dimensions per tank: 78 * 78 * 150 cm 78 * 78 * 190 cm
Warranty: 5 years factory warranty 5 years factory warranty
Insurance protection: 5 million euros on a flat-rate basis for personal and material damage