Collect rainwater for a useful garden reservoir

Rainwater harvesting stores runoff for later use rather than sending it straight away from the garden. Aquascape’s modular approach combines water storage with the option of a recirculating water feature. Start with the collecting area, the amount of storage you can accommodate and what you want the stored water to do.

For a roof-fed installation, start with the Downspout Filter before the AquaBlox storage modules. Storage capacity, waterproofing, overflow and access are separate parts of the design.

Can the collected water be used as drinking water?

This category is for garden water-storage and water-feature components, not a potable-water treatment system. Drinking-water use requires a separately designed and approved system.

More advice on choosing and installing

Filter runoff before it enters storage

Leaves and roof debris are easier to remove before they enter a buried reservoir. Include accessible pre-filtration, an overflow route and a way to inspect and maintain the storage. AquaBlox provide the internal space; a suitable liner and protective layers contain the water.

Balance storage and demand

The roof area, rainfall pattern and intended garden use all affect useful capacity. A fountain can recirculate stored water, but evaporation and splashing still consume some of the supply. Plan how the feature is stopped safely when water becomes low, and how overflow is managed during heavy rain.

Does buying AquaBlox make a complete harvesting kit?

No. A full layout also needs suitable collection, filtration, waterproofing, overflow and pump arrangements. Check the exact kit contents and site design before excavation.

Follow the water from the roof to storage

  1. Collect and pre-filter: the Downspout Filter removes solid roof debris through gravel and a removable 300-micron net. Gravel is supplied separately.
  2. Store: Small AquaBlox and Large AquaBlox provide open space inside a properly lined reservoir, not a waterproof tank on their own.
  3. Maintain: leave access to empty the net, inspect the storage and service the pump. Provide an overflow route and appropriate low-water protection in the design.

Aquascape’s Downspout Filter installation instructions show the drainage and cleaning arrangement. Mechanical pre-filtration does not make collected roof water drinking water.