Underground Storage Tanks / Rainwater Tanks

Underground Storage Tanks / Rainwater Tanks (23)

Tanks for rainwater storage underground available in capacities ranging from 1000 - 10,000 litres

Collecting rainwater is the first step in the sustainable use of water. This can be done underground with internal collecting tanks.

 

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Above-ground Storage Tanks

Above-ground Storage Tanks (41)

Above-ground plastic storage tanks

Catching rainwater is the first step in sustainable water management. For renovation projects in urban areas, doing this above-ground is often the only option. Our tanks are suitable for above-ground storage in buildings where access is limited. Larger volumes can be achieved too by connecting several tanks, while the fact they are light-weight means they are easy to install as well. Industrial storage basins are mainly designed to be used by companies, as this way, washing installations, horticultural and industrial companies can keep and store large amounts of water in a rational way. Rainwater can be used for all kinds of purposes, such as filling ponds, cleaning terraces, watering plants, and much more.

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Rainwater Filters

Rainwater Filters (21)

Catching twigs, leaves, stones, sand and other debris before the rainwater flows into the tank

Catch branches, leaves, stones, coarse sand, dirt, ... by means of a rainwater filter before the rainwater enters the well. Rainwater cleaned by these filters is in perfect condition for tank storage and for later use in the washing machine, for flushing toilets, use in the garden…

Pre-filters: The cyclone filters are usually installed underground in the horizontal rainwater pipe coming from the roof. The water coming from the roof enters the side of the filter and is then led over the vertically standing cylindrical filter. Due to the centrifugal force, the rainwater is sucked through the vertical filter and fed to the storage tank via the exit behind. The leaves, moss and other dirt are reliably filtered out and washed away with the residual water to the drain.

Inline filters: The inline filter is incorporated in the manhole or in the raising shaft of the rainwater well. This is placed between the inlet and outlet. The filtered rainwater flows vertically into the rainwater tank, the dirt that remains in the filter is washed away. The inline filters have been developed for applications with limited space and where there is only a small difference in height between inputs and outputs.

Downpipe filters: The downpipe filters are built into the rainwater downpipe. Installing a downpipe filter is most ideal for pitched roofs made of roof tiles or slates.

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Rainwater Harvesting Systems

Rainwater Harvesting Systems (48)

Rainwater installation - Rainwater harvesting and rainwater use

Rainwater is perfect for doing the washing, flushing the toilet and watering the garden. If we want to use this valuable resource, a proper rainwater installation is a must, however. Did you also know rainwater tanks are now mandatory for new-builds and thorough renovations? So why not use all that free water as much as we can?

Automatic switch to tap water with a Sigma, Optima or Multimat operating system. These systems for rainwater harvesting manage the entire rainwater supply flow, check the level of the rainwater tank and switch automatically to tap water when needed. Consistent with the DIN 1989 and DIN EN 1717 norm. Our refillsystems are approved by the Belgian Federation for the Water sector (BELAQUA), we possess a BELAQUA certificate.

LOW ENERGIE USAGE! The systems are standard outfitted with a pump regulator (ZETA 02 pump controller) that uses only 0.2 Watts in stand-by mode, which is considerably lower than other commercially available operating systems. This pump regulator controls the pump when needed

Suction filters: All suction filters are standard fitted with a floater of 15cm diameter.

  • Floating fine suction filters (SAFF): to drain rainwater from tanks and other vessels, ponds and wells. This filter has a mesh size of 0.3mm
    Floating coarse suction filters ( SAGF): to drain clean pre-filtered rainwater from cisterns and other vessels. This filter has a mesh size of 1.2mm
  • Suction filters without non – return valve: these models for submersible pumps / pressure pumps have no non-return valve (like with our Optima system)
    Suction filters with non-return valve: these models are for suction pumps fitted with a non-return valve (like with our Sigma system)

Suction filter sets: These sets comprise of a standard fine suction filter with floater (15cm) and a suction hose with connector.

Total Solution

  • Complete rainwater harvesting systems: installation for the reuse of rainwater through use of a connected pumping installation for the connection of one ore more toilets or washing machines.
  • Slim Rain harvesting systems: instant solution for the use of rainwater in the garden and around the house.

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Rainwater Infiltration

Rainwater Infiltration (14)

Infiltration system that lets water seep into the soil

Letting rainwater infiltrate means we leave it to seep into the soil again, one way or the other. By doing so, we do, in fact, no more than restoring a disrupted natural pattern, because usually, when rain falls, it seeps back into the soil, replenishing groundwater reserves. But densely built-up areas leave rainwater less and less the chance to do this. Which means that letting rainwater infiltrate can be a valuable contribution to restoring our groundwater reserves and combatting drying out.

A good infiltration system can be made up of underground plastic crates that catch the rainwater temporarily and slowly let it seep into the ground again.

Our individual infiltration systems can be connected to:

  • Your rainwater tank overflow
  • Rainwater from paved surfaces (terraces), collected in drainage channels, floor drains, etc.
  • Potentially purified wastewater (overflow of individual water purification)

DS Infiltration crates come in ready-to-use packages of 200 l -  1,200 l. Provided with an in- and out connection of ø160 and an inspection channel. The BENOR certified geo textile they are wrapped in is quality woven SG29/29 (Bonar)-type plastic mesh which eliminates the risk of clogging. Very flexible!

Several standard sizes can be combined for projects larger than 1,200 l.

DS sand trap is installed before the infiltration crates. Body in HDPE with removable PVC bucket.

PVC filter trap is installed before the infiltration system and catches small debris. Suitable for catching leaves and filtering debris.

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Stormwater Management

Stormwater Management (8)

Large volumes of 20.000 L to 300.000 L

  • DS STORM DRAINS: Temporary storage of water in heavy rain for controlled release.
  • DS INFILTRATION BASINS: Simultaneous infiltration of rainwater.DS Polystorm crates were specifically designed for use in large applications.
  • DS STORAGE BASINS: Rainwater storage for re-use

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