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Category · Industrial water tanks – rainwater storage for trade, industry & agriculture

Industrial water tanks & rainwater storage Roth industrial storage & AquaBank® – 2000 to 15,000 litres

Large-volume rainwater and industrial-water storage for trade, industry and agriculture. Two systems: the modular Roth industrial storage tank (2000–3000 L, flat-rectangular, expandable with additional tanks) for efficient rainwater use in car washes, nurseries and businesses – and the AquaBank® 15,000 L large tank (upright, Ø 2950 mm, black, polyethylene) for agriculture and industry.

✅ 2000 to 15,000 litres ✅ Roth industrial storage – modularly expandable ✅ AquaBank® – black, no algae growth ✅ Polyethylene · delivery time 2–5 days

Roth industrial storage base

The Roth industrial storage base is the starting element of a modular rainwater system – it has a DN 100 inlet with inlet calming, an overflow siphon with an integrated small-animal barrier and two lower flange connections. Extension tanks or a floating extraction can be connected to the flange connections.

Roth industrial storage extension tank

Extension tanks are connected to the base tank via Roth connecting lines and increase the total capacity modularly – a 2000 L base plus two 2000 L extension tanks gives 6000 litres total volume. The extension tanks have no inlet of their own, as the water flows through from the base tank.

AquaBank® 15,000 L – large storage

The AquaBank® 15,000 L tank is an upright cylindrical tank made of black polyethylene for agriculture and industry. The black colour prevents algae growth by excluding light. Equipment: 24" inspection hatch, 2" or 3" ball valve, four lifting eyes, ventilation and smart monitoring. 5-year warranty on the tank.

Areas of use

Roth industrial storage: for commercial rainwater use in car washes, nurseries, businesses and agriculture – everywhere that larger quantities of water are to be stored and used efficiently. AquaBank® 15,000 L: for irrigation systems, firefighting-water reserves, process-water buffers in industry and large agricultural operations.

The right industrial water tank for your operation

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Roth industrial storage or AquaBank®?

Roth industrial storage: modular, flat-rectangular (880 mm wide), space-saving, ideal for underground or semi-recessed placement and rainwater use in commercial operations. Scalable from 2000 up to several thousand litres via extension tanks. AquaBank® 15,000 L: upright large tank for above-ground placement, Ø 2950 mm – for agriculture, irrigation, firefighting water and industrial buffer storage.

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Modular system – base + extension

The Roth industrial storage system has a modular design: a base tank (with inlet, overflow siphon, flange connections) forms the system centre. Extension tanks are connected to it via a 2-inch Roth connecting line. The water equalises between the tanks. Possible combinations: 2000+2000=4000 L, 3000+3000=6000 L, 2000+3000=5000 L. Expandable at will.

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Why is the AquaBank® black?

Algae need light to grow. Transparent or light-coloured tanks let light through – an algae bloom is the result, especially in summer. The black AquaBank® tank made of PE blocks light completely and prevents algae growth permanently – without chemicals. At the same time, the dark surface absorbs heat, which can be advantageous when used as a warm-water buffer in agriculture.

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Inlet calming – what is behind it?

When rainwater flows unfiltered into the tank at high speed, it stirs up sediment and turbid matter – the water becomes cloudy and the quality drops. The inlet calming (integrated in the base tank) slows and distributes the incoming water gently, so that suspended matter can settle and clean water is extracted.

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Inspection opening – why important?

The inspection opening (oval 500×400 mm on the industrial storage, 24" on the AquaBank®) enables access to the tank interior for: cleaning and maintenance, installation of pumps and float valves, inspection and camera surveys. A sufficiently large opening is a prerequisite for easy long-term maintenance of the tank. With openings that are too small, many maintenance tasks are impossible.

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Smart monitoring on the AquaBank®

The AquaBank® 15,000 L supports smart monitoring for fill-level monitoring – the tank contents can be monitored digitally without visiting the site. Particularly valuable for decentralised locations such as fields, outdoor storage and remote operating sites where the fill level would have to be checked regularly. Details of the monitoring system on request.

Frequently asked questions about industrial water tanks

The base tank is the system centre: it has a DN 100 inlet with inlet calming, an overflow siphon with a small-animal barrier and two lower flange connections. Extension tanks or extraction pumps are connected to these flange connections. The extension tank has no inlet of its own – it is connected to the base tank or another extension tank via a connecting line (Roth 2-inch connecting line). The water equalises within the system. Several extension tanks can be connected in series.
The system is modularly scalable: 1 base (2000 or 3000 L) + any number of extension tanks. Examples: 1 base 2000 L + 1 extension 2000 L = 4000 L. 1 base 3000 L + 2 extensions 3000 L = 9000 L. Theoretically the number of extension tanks is unlimited, practically limited by the available space and the pressure equalisation within the system. The tanks are placed side by side and coupled via short connecting lines.
The AquaBank® 15,000 L is an all-round large storage tank for: agriculture (irrigation reserve, drinking water for livestock), industry (process-water buffer, cooling-water reserve), firefighting-water supply (fire-protection reserve for operations without sufficient hydrant pressure), rainwater use (collection of roof runoff from large halls), construction water (water supply on construction sites). The black PE construction prevents algae growth, 5-year warranty, 2" or 3" ball valve for fast extraction.
The Roth industrial storage tanks (base and extension) are flat and narrow (880 mm wide, 1650 mm high) – they can be placed semi-recessed in earth hollows or in building basements, but are not designed for full underground installation (buried). They are primarily designed for above-ground or semi-concealed use in technical rooms, basements and covered areas. For fully underground installation, the wastewater tanks/collection pits are more suitable.
An overflow siphon is a siphon-shaped drainage device that prevents excess water from running out uncontrolled when the tank is full. The siphon drains excess water in an orderly way into the sewer or a seepage area. The integrated small-animal barrier prevents mice, frogs or insects from getting into the tank via the overflow. The overflow siphon is an important safety component that is already integrated in the Roth industrial storage base.
The right pump depends on the intended use: for garden irrigation and simple extraction: a simple submersible pump inserted through the inspection opening. For pressure boosting and domestic water use: a domestic waterworks unit (pressure pump with pressure vessel). On the Roth industrial storage base, the lower flange connection enables the connection of a floating extraction – this extracts water from the cleanest layer (middle of the tank) and prevents sediment extraction. You will find pumps in our accessories range.

The right industrial water tank for your operation

Our specialist team advises you free of charge – on volume, modularity, installation location and the optimal solution for your water supply.

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