TopTank 1000L Rectangular Loft Water Tank

TopTank 1000L Loft Tank

The TopTank 1000L Rectangular Tank serves as a high-capacity indoor storage solution for gravity-fed plumbing systems and residential backup. Manufactured from food-grade polyethylene, this vessel ensures potable water remains safe and uncontaminated. Its low-profile rectangular footprint specifically targets installations where vertical clearance is limited or where the unit must pass through standard internal doorways.

Built for the Job

Plumbers and site supervisors select this specific storage unit for its ability to distribute weight more effectively across ceiling joists compared to vertical cylindrical alternatives. The rotationally molded construction provides a seamless body, which eliminates weak points common in welded containers. This design handles the static pressure of a full thousand-litre load without bulging, provided it sits on a fully supported, level surface. The material choice also prevents algae growth when kept in dark environments like attic spaces.

• Secondary water storage for residential gravity-fed bathroom systems.

• Buffer tanks for commercial facilities requiring indoor backup supply.

• Installation in restricted height areas like crawlspaces or under eaves.

Product Highlights

Structural Integrity

The ribbed sidewall design increases the hoop strength of the plastic, preventing deformation under maximum liquid volume.

Material Specifications

• UV-stabilized LLDPE prevents brittleness over long-term use.
• FDA-approved food-grade resin ensures no chemical leaching into the supply.

Access and Maintenance

A large diameter manhole cover allows for easy internal cleaning and straightforward installation of float valves and outlets.

Technical Specifications

What’s Included

• 1 x 1000 Litre Rectangular Loft Tank body

• 1 x Heavy-duty inspection cover

On-Site & Workshop Notes

• Ensure the supporting platform extends at least 50mm beyond the base of the vessel on all sides to prevent stress fractures.

• Verify that ceiling joists can support the 1,000kg static load of the water plus the weight of the container.

• Use high-quality bulkhead fittings with EPDM gaskets to ensure leak-proof connections on the flat tapping panels.

• Position the unit away from direct heat sources or sharp structural components that could puncture the plastic walls.