Underground rainwater tank - GARDEN COMFORT 5600L set (CRISTALL DUO 5600L tank + equipment with automatic submersible pump) W-277

Underground rainwater tank – an effective solution for home and garden

This kit is a complete solution for collecting rainwater, ideal for both homeowners and professional installers. It includes the Cristall Duo underground tank with a capacity of 5600 liters, equipped with a telescopic extension and a double-walled cover, ensuring safety and durability. The whole is complemented by an external filter in a manhole, an automatic submersible pump with a hose, and a water intake point with quick couplings.

Functionality and application

The Cristall Duo tank is primarily a way to ecologically use rainwater. The collected water is ideal for watering the garden, washing outdoor surfaces, and even flushing toilets (after applying an appropriate filtration system). Thanks to its solid construction and the possibility of expanding, the tank can also function as a sealed septic tank. Installation is relatively simple – it requires preparing an excavation with appropriate bedding. The height of the cover can be adjusted using the telescopic extension, adapting it to the needs of a specific installation.

Construction and advantages

The tank is made of high-quality PE-HD polyethylene, which guarantees its resistance to mechanical damage and corrosion. The two-part construction ensures tightness, and the double-walled cover increases safety – it is resistant to pressure and has a child lock. An additional advantage is the possibility of installation in areas with a high groundwater level (up to 50 cm). The set also includes an external filter, which protects the pump from contamination and extends its life. The automatic submersible pump makes it easy to draw water, and the connecting hose and water intake point with quick couplings ensure ease of use.

• Durable construction: Made of PE-HD polyethylene resistant to ground conditions and mechanical damage.
• Tightness: Monolithic, two-part construction guarantees no leaks.
• Safety: Double-sided cover protected against pressure and access by children.
• Versatility: Can be used for various purposes – watering the garden, washing surfaces, flushing toilets or storing sewage.
• Complete set: Contains all the necessary elements for the proper functioning of the rainwater retention system: tank, cover, filter, pump and water intake point.
• Automation: Automatic submersible pump provides convenience – it starts and stops automatically depending on the water demand.