TopTank 750 Litre Cylindrical Water Tank, Food-Grade Polyethylene

TopTank 750L Cylindrical Tank

The TopTank 750 Litre Tank provides a reliable solution for potable water storage in residential, agricultural, and commercial settings. This cylindrical unit utilizes high-density polyethylene to ensure structural integrity under full load. Plumbers and site managers select this model for its manageable footprint and long-term weather resistance in outdoor environments.

Built for the Job

This container fits well in tight spaces where larger vertical reservoirs are impractical. It serves as a primary reservoir for small households or a header tank for multi-story plumbing systems. Contractors often install these units in series to increase total capacity while maintaining a low profile on site. The cylindrical design distributes water pressure evenly against the walls, reducing the risk of stress fractures over years of service. It is suitable for rainwater harvesting, borehole water storage, and municipal backup systems.

• Residential backup water supply for domestic plumbing and irrigation.

• Header tank applications in commercial buildings for gravity-fed systems.

• Small-scale agricultural water troughs or nutrient mixing stations.

Product Highlights

UV-Stabilized Construction

The black outer layer prevents ultraviolet light penetration to inhibit algae growth and protect the polymer from sun degradation.

Structural Engineering

• Integrated horizontal ribs provide hoop strength to prevent bulging when the vessel is at maximum capacity.
• The food-grade inner lining ensures that stored water remains free from plastic odors or chemical leaching.
• Heavy-duty manhole cover with a secure locking mechanism prevents debris and pests from entering the supply.

Technical Specifications

What’s Included

• 1 x 750 Litre Cylindrical Water Tank

• 1 x Heavy-Duty Threaded Lid

• Pre-installed brass or plastic outlet fitting (standard configuration)

On-Site & Workshop Notes

• Always install this reservoir on a smooth, level concrete plinth that is at least 100mm thick to support the 750kg operating weight.

• Avoid placing the unit on timber sleepers or uneven ground, as localized pressure points can cause the base to deform over time.

• Use flexible hose connectors between the tank outlet and rigid PVC piping to accommodate slight movement and thermal expansion.

• Ensure the overflow pipe is directed away from the foundation to prevent soil erosion around the base of the installation.