TopTank 460 Litre Rectangular Loft Water Tank, UV-Stabilized Polyethylene

TopTank 460L Rectangular Loft Tank

The TopTank 460 Litre Tank provides a high-capacity storage solution specifically engineered for installation in confined attic and ceiling spaces where vertical clearance or hatch access is limited. This unit utilizes food-grade polyethylene to ensure safe potable water storage in residential and commercial plumbing systems.

Built for the Job

Plumbers and site supervisors frequently specify this rectangular profile when circular tanks cannot pass through standard loft hatches or fit between structural roof trusses. The low-profile design distributes weight more effectively across ceiling joists compared to tall cylindrical units. This container functions as a primary header tank for gravity-fed water systems or as a secondary reserve for building maintenance. Its seamless construction eliminates the risk of joint failure under hydrostatic pressure, making it a reliable choice for long-term installation in hard-to-access areas.

• Installation in residential lofts for gravity-fed cold water systems.

• Water storage for facility management in narrow utility rooms.

• Header tank applications for solar water heating configurations.

Product Highlights

Rotational Molding Technology

The manufacturing process creates a single-piece, stress-free body with uniform wall thickness to prevent thinning at the corners.

Material Integrity

• Manufactured from high-quality Linear Low-Density Polyethylene (LLDPE).
• UV-stabilized outer layer prevents degradation from indirect sunlight exposure.

Technical Specifications

What’s Included

• 1 x 460 Litre Rectangular Loft Water Storage Tank

• Heavy-duty threaded lid for contamination protection

On-Site & Workshop Notes

• Always install this storage unit on a flat, level, and continuous base that supports the entire surface area of the bottom.

• Verify that the attic hatch clearance accommodates the dimensions of the rectangular frame before attempting transport to the roof space.

• Use high-quality bulkhead fittings for inlet and outlet connections to maintain a watertight seal over time.

• Regularly inspect the lid seal to prevent dust or pests from entering the potable water supply.