Future-proof building with integrated water storage.

A residential courtyard, school grounds or business garden should be a welcoming place. Plants still need water on dry days, but space for storage is often limited. Make a rainwater reserve part of the design. We offer personal support for large projects and dealer enquiries; homeowners and businesses can order standard packages in the shop.

Greenery and water storage in the design

For courtyards, school grounds and green outdoor areas: make water storage part of the design. Keep rain for the planting without putting a separate tank at the centre of the space.

  1. 1. Collect

    Roof rain runs through the filter into the slim wall instead of flowing straight away.

  2. 2. Store

    Around 1,000 litres per module, in a wall about 30 cm deep. Keep rain along a suitable façade or garden boundary.

  3. 3. Water later

    Water your plants, hedge and beds from your own reserve on dry days. A full module holds about 100 ten-litre watering cans.

Rainwater is naturally soft and low in lime. A great choice for your plants — and a smart way for you to use less tap water.

One reserve, so many solutions

  • A green garden, less tap water. Give your flowers, beds and hedge soft rainwater from your own reserve. Put the rain to work for the greenery you love to watch grow.
  • Useful beyond the garden. Use rainwater to rinse your car, clean your garden furniture or wash your tools. These outdoor jobs do not need drinking water.
  • Give rain a new purpose. HARVES collects roof water that would otherwise flow straight away. Use your reserve in the garden and make room for the next shower: a practical contribution to more thoughtful water use.