This underground rainwater harvesting system utilises the PURATANK underground water tank along with the Cascade Rainwater Harvesting System to provide a versatile rainwater reuse solution. Garden harvesting systems are used for irrigation or to supply water for small commercial applications, such as vehicle or yard washdown. The PURATANK is an ideal choice for this application, with its easy, shallow-dig installation, robust design, and 10-year warranty.

Key features of this tank:

• Manufactured from High Strength Polyethylene
• The curved design allows all water to be pumped out
• Ultra low profile allowing 
• Minimal granular surround installation
• Huge savings on the overall installation
• Corrosion-free - 10 Year warranty
• Can be supplied with access covers in various loadings
• Full accessibility for maintenance
• UK made and complies with EU & UK regulations

Cascade Garden System Includes:

• B Series stainless steel pump & float switch to prevent the pump from running dry.
• Rodent guard
• Patronen Filter with stainless steel mesh and is self cleaning
• Pump turret connection which allows easy connection between the pump and access port 
• Floating intake ensures that no water from either the bottom or the surface of the tank is taken in. Only clean water passes through the pump.
• Pump lifting chain allows the pump to be easily lifted out for maintenance.
• Calmed inlet stops the rainwater entering the tank from stirring up the contents of the tank

Tank Specification:

Options:

Choose from the following options in the drop down menu:

Telescopic Extension Riser -  Allows the depth of the tank to be increased to between 400 and 750mm. The riser can easily be trimmed using a hand saw.

Underground Tank Access Cover - Choose from either the pedestrian duty (foot traffic) lockable cover or the light vehicle cover (mowers or small cars - NOT Vans or 4 x4's).

Installation:

Where the tank installation is above the water table these tanks can be installed using a granular / pea shingle surround and 300mm of cover (please see the installation overview from the brochure download). Where high water tables exist it is recommended that a concrete surround is used with a minimum 150mm of cover. If installed in trafficked areas a specially designed reinforced concrete cover slab must be installed.

Delivery:

FREE delivery of this product includes most UK locations, however postcodes AB, IV, KW, KY, PH, PA  as well as Northern Ireland, Scottish Highlands and offshore locations will incur an additional delivery surcharge. Please contact us prior to ordering so we can quote the additional costs. This product is delivered to the kerbside with a tail lift offload.