Rainwater Underground Storage Tank 3500L with Shaft DN 600 and Lid Included

✅ Robust, earth-stable round Roth rainwater underground tanks available in 3500, 4500 and 6000 liter capacities — an ideal solution for commercial, industrial, construction, trade and agricultural applications for rainwater harvesting and retention. The one-piece tank is made from high-quality polyethylene (PE), is stable for burial, durable and designed for integration of complete rainwater harvesting systems. Vorteile auf einen Blick ✅ - ✅ One-piece PE molding: high corrosion and chemical resistance, long service life - ✅ Earth- and traffic-stable: suitable for buried installation; drivable by cars with the appropriate shaft cover - ✅ Prefabricated DN 600 manhole/shaft system: telescopic shaft including pedestrian-loadable cover included - ✅ Flexible system integration: connection options for filter and pump sets; overflow siphon recommended - ✅ Connectable: lower connection line DN 100 allows modular setup and capacity expansion Technical features ⚙️ - ✅ Capacity: 3500 / 4500 / 6000 liters - ✅ Material: high-quality polyethylene (PE), rotationally molded, one-piece - ✅ Manhole/shaft: telescopic DN 600 shaft (included), pedestrian-loadable cover - ✅ Connections: 2 × DN 100 connections in the shaft (with special DN 100 sealing), 1 × DN 100 end connection as overflow - ✅ Coupling: lower connecting line DN 100 (drilling/knockout area provided on the tank); connection kit available separately - ✅ Installation: earth-stable, drivable by cars when using the Roth car-loadable shaft cover (accessory — follow installation instructions) Scope of delivery - ✅ One-piece PE underground tank - ✅ DN 600 shaft system with pedestrian-loadable cover - ✅ 2 × DN 100 connections in the shaft with special DN 100 seals - ✅ 1 × DN 100 end connection on the tank (overflow) Car drivability 🚗 ✅ Roth round underground tanks are drivable by cars — prerequisite: order the Roth car-loadable shaft cover from the accessories range and strictly follow the installation instructions for car drivability. Accessories & system integration 🧰 - ✅ Roth filter systems: suitable for installation in the buried tank or in the shaft - ✅ Roth overflow siphon with small-animal guard: recommended to prevent odors and ingress of animals - ✅ Pump technology: system packages available for domestic use and garden irrigation - ✅ Connection set DN 100: for coupling multiple tanks (order separately) Coupling and expansion ✅ Tanks can be factory-coupled via a lower DN 100 connection line. A drilling/knockout area for the lower connection is provided on the tank. Please refer to the Roth accessories program for the appropriate connection kit and additional accessories. Technical overview Model — Volume (L) — Tank dimensions (mm) L × W × H — Weight (kg) - Round underground tank 3500 L incl. DN 600 shaft and cover — 3500 L — 2120 × 1720 × 1835 mm — 190 kg - Round underground tank 4500 L incl. DN 600 shaft and cover — 4500 L — 2480 × 1770 × 1885 mm — 220 kg - Round underground tank 6000 L incl. DN 600 shaft and cover — 6000 L — 3200 × 1830 × 1945 mm — 250 kg Installation notes & planning tips - ✅ Check ground conditions and load-bearing capacity at the installation site - ✅ Adjust burial depth to the DN 600 manhole (telescopic) - ✅ Car drivability only with the appropriate shaft cover and strict adherence to the installation instructions - ✅ For coupling: use the DN 100 knockout area and install the connection kit according to the manufacturer’s instructions - ✅ For rainwater harvesting systems: match pump/filter packages to the intended use profile (domestic systems / garden irrigation) Applications - ✅ Rainwater harvesting for irrigation of green spaces, agricultural and horticultural irrigation - ✅ Use as retention and storage tanks on construction sites - ✅ Supply of outdoor areas in industrial and commercial properties Conclusion ✅ ✅ The Roth round rainwater underground tanks (3500–6000 L) are an economical, proven and modular solution for commercial applications: robust PE material, supplied DN 600 shaft system, flexible coupling options (DN 100) and extensive accessories for complete rainwater harvesting systems. Ideal for planners and contractors who need an in-ground, expandable and maintenance-friendly storage solution. ℹ️ For quotations, installation instructions and individual system configurations, please contact your Roth specialist dealer or technical support. ✅