A complete 10000-litre domestic underground rainwater harvesting system for your garden.
This system has everything you need to filter, store, and pump rainwater to the point of use, such as a garden tap. All you need to supply is the rainwater collection and distribution pipework.
This 10,000-litre domestic garden system is generally suitable for large projects.
Rainwater storage tank
Our 10,000-litre underground storage tank is complete with a pedestrian rated telescopic neck (extendable by up to 300mm), pedestrian rated lid, push fit DN100 drainage connections, in-tank-filter, and calmed inlet.
Made from polyethylene plastic in the UK, it has a unique ribbed design for extra strength. Thanks to its low profile design, only a shallow dig depth is required. It most cases it can be installed without the need for concrete.
In-tank rainwater filter
The system is supplied with a choice of 3P Technik in-tank filters:
1) Compact filter suitable for roof areas up to 150M2
2) PF filter suitable for roof areas up to 200M2
3) VF1 filter suitable for roof areas up to 450M2 (twin neck tank required)
The filter is pre-installed into the neck of the tank, where is it joined to the also pre-fitted calming inlet.
This filter removes leaves, grit, and other debris from the incoming water up to approximately 1mm.
Finer particles form a “scum layer” and are washed away during overflow or filtered out by the secondary filtration.
The filter is easy to clean. There are no consumables- just lift, rinse, and replace for continued use.
Twin neck tank option
This tank has a twin neck/access opening option, which is supplied with 2 x telescopic necks and 2 x pedestrian rated lids.
Due to the size of the tank, we recommend this option for better tank and interior component inspection and maintenance.
However, the twin neck tank is a must if you opt for the VF1 filter. Due to the size of the VF1 filter, it will fill the access opening completely which leaves no room to inspect or maintain the interior of the tank or any internal equipment.
DAB submersible pump
This system is supplied with a highly reliable DAB Divertron 1000m submersible pump.
It delivers approximately 4 bar of pressure and up to 3,500 litres/hr of flow.
The pump starts and stops automatically by its integrated control system. It has dry run protection, a built-in non-return valve, and a screened filter as standard.
It is suspended from a pre-fitted hook in the neck of the storage tank by a stainless steel chain. It comes with a high-quality large handle, for easy lifting when necessary.
How does it work?
Water is pumped to the point of use (outside tap) by the submersible pump.
When demand is placed on the submersible pump (tap is turned on), it starts automatically and vice-versa once the demand has ended (tap is turned off) the pump stops.
Should the underground tank become low, the submersible pump is complete with dry run protection and a non-return valve.