TopTank 4200 Litre Cylindrical Vertical Water Tank

TopTank 4200L Vertical Tank

The TopTank 4200 Litre Tank provides a high-capacity solution for bulk liquid storage in residential, agricultural, and commercial plumbing systems. This vertical cylindrical vessel utilizes UV-stabilized linear low-density polyethylene (LLDPE) to maintain structural integrity when exposed to harsh environmental conditions. It serves as a primary reservoir for municipal water backup, borehole systems, and large-scale rainwater harvesting projects.

Built for the Job

Engineered for long-term durability on-site, this storage vessel features a seamless rotational molding construction that eliminates weak points or joints prone to leaking. The vertical ribbing design provides additional hoop strength, allowing the walls to withstand the outward pressure of over four tons of water without bulging or deforming. Site supervisors prefer this model for its balance of footprint and volume, making it suitable for placement on reinforced concrete plinths or elevated steel towers. The food-grade material ensures that the stored contents remain uncontaminated, meeting health standards for potable water storage.

• Ground-level municipal water storage for multi-unit residential blocks.

• Agricultural irrigation buffering for greenhouse and livestock operations.

• Industrial process water holding for manufacturing and facility maintenance.

Product Highlights

UV-Stabilized Construction

The polyethylene material includes carbon black additives to prevent ultraviolet degradation and inhibit internal algae growth.

Integrated Fitting Points

• Pre-molded inlet and outlet zones for secure plumbing connections.
• Heavy-duty threaded manhole cover to prevent debris ingress.

Technical Specifications

What’s Included

• 1 x 4200 Litre Cylindrical Water Tank

• 1 x Heavy-duty Screw-down Lid

On-Site & Workshop Notes

• Install the reservoir on a level, smooth concrete base at least 100mm thick to ensure even weight distribution.

• Plumbers should use flexible couplings for pipe connections to accommodate minor expansion and contraction of the plastic.

• The unit requires adequate venting to prevent vacuum formation during high-volume discharge cycles.

• Verify that the installation site is clear of sharp stones or protruding debris that could puncture the bottom surface.