Underground systems - HOUSE Complex rain harvesting systems

As the roof-collected rainwater runs down your gutter it picks up pieces of dirt and transports them into your rainwater tank. To prevent dirt from getting into the tank, a filter is provided to "filter" the rainwater before it enters the tank. Impurities accumulated in the filter need to be removed. Open the lid, take out the basket and remove all debris. We recommend that you rinse the basket with running water to clean filter meshes of smaller pieces of dirt.

Operating principle of the collecting filter:

1. Rainwater collection from the downpipe,
2. Debris are held by a small-mesh filter (filter mesh size 0,55 mm),
3. Rainwater collecting from another pipe (when rainwater is collected from two downpipes),
4. Purified rainwater flows into the underground tank.

Features:

• Easy construction,
• Dirt collecting basket to avoid silting of the infiltration system,
• Excellent filter efficiency.

As the roof-collected rainwater runs down your gutter it picks up pieces of dirt and transports them into your rainwater tank. To prevent dirt from getting into the tank, a filter is provided to "filter" the rainwater before it enters the tank. Impurities accumulated in the filter are periodically cleaned out in heavy downpours as rainwater runs down the gutter at high speed. We recommend that you take out the filter insert every few months and rinse it with running rainwater to remove smaller pieces of dirt.

Operating principle of the flow filter:

1. Rainwater collection from the downpipe,
2. Debris are held by a 0,17 mm small-mesh filter,
3. Purified rainwater flows into storm drains.

In wooded areas we recommend that you use a poly-net to prevent the leaves and grit from entering the system. Leaf guards on running outlet or leaf traps fitted on downpipes are also possible. This will prevent less dirt from getting into the storage tank and help avoid maintenance work.

FEATURES:

• Easy construction,
• Automatic operation,
• Excellent filter efficiency.

Made from high quality polyethylene the 150 l AquaBlok® weighs 8 kg, is easy to transport and withstands vertical load up to 2,5 t/sq m. The package comprises two AquaBloks with an almost ideal 54 cm cube design and a geotextile fabric to prevent water and grit from getting into the boxes. The system effectively enables sinking of the rainwater collected in the infiltration boxes into the surrounding ground. The package of two AquaBloks and a geotextile fabric can drain up to 50 sq m of the roof. Bigger roof areas require additional AquaBlok modules.

AquaBloks withstanding vertical load up to 15 t/sq m are available on request.

FEATURES:

• Made from environment-friendly polyethylene,
• Easy to separate in two or more pieces,
• Suitable for every type of ground,
• Resistant to mechanical damage and easily transported,
• Withstand vertical load up to 2,5 t/sq m,
• Simple and fast installation,
• Easily connected to drain pipes.

AQUABLOK DRAINAGE SYSTEM INSTALLATION

Prior to AquaBlok® installation a semipermeable geotextile fabric must be disposed in the trench. Please observe the ground parameters (permeable, semipermeable or impermeable ground) and roof area's water catchment yield (according to the roof size and geographic location of the building).

Several pieces of AquaBlok® can be installed in an upright or horizontal position. After installing and connecting with rainwater pipe to the storage tank the whole unit is tightly wrapped in the geotextile fabric and covered with earth. AquaBlok® can also serve for rainwater infiltration when the rainwater storage tank is not provided.

The system pumps rainwater direct from the storage tank to the domestic waterworks or switches to mains water supply in the event of the rain stocks running dry. Should there be no rainwater in the tank, the automatic switch protects the pump against dry-running. The valve for the drinking water feed is set to drinking water operation, so that the pump is supplied directly with freshwater without detour through the tank. This ensures that the system remains fully operational even during prolonged dry periods. The controller has been designed to manage the system shared between two households.

Operating features:

• Clean water with a small amount of sand,
• Maximum water temperature +50°C,
• Maximum head (lift height) 32 m,
• Flow 2,5 m3/h.

FEATURES:

• Compact and attractive design,
• Quiet and automatic in operation,
• Energy-saving,
• Easy installation,
• Switchover between manual and automatic operation.