TWO PART TANKS

Overview

A GRP Water Storage Tank suitable for locations with limited or restricted access and where one piece tanks are not ideal. Two Part Tanks are the perfect solution because they are made up of an upper and lower section. 

They are effectively a one piece tank supplied in two sections to make transportation and placement easier. Tricel manufactures GRP Two Piece Tanks as they are also known, suitable for storing potable and non-potable water.

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GRP Two Part Tanks

GRP two part water tanks are one of the few quick assembly water storage solutions in the market. It comprises of two panels and a cover. They can be left in place or alternatively be taken apart and installed for another application. 

These horizontally split tanks are simple to assemble making them ideal for emergency situations. Manufactured from GRP to ensure the water tanks longevity and maintain the water quality. The tanks have an integral foam core, which provides advanced insulation properties. Additionally the water tank panels have a gel coat applied to the surface to provide it with a smooth finish, making it easier to maintain and clean. 

The tanks are easy to store as they do not take up much storage space. Each tanks are dispatched as a complete kit ready to assemble.

 

Tricel Weston Two Part Tank

Supplying the Biggest Projects

With vast experience, we have completed various projects across different industries. No project is too big or complicated for us at Tricel. Every project is different, and we have installed GRP sectional water tanks where space was restricted to a minimum and other structural factors were a concern.

Advantages of Two Part Tanks

  • Ideal where access is restricted
  • Bespoke options available on request 
  • Pre-insulated two piece tanks are available with insulation in varying thicknesses 
  • Fully self-draining tanks are available 
  • All materials used have beenapproved by WRAS (Water Regulations Advisory Scheme) 
  • Standard capacities are available from 272 litres to in excess of 5690 litres
  • Can be supplied in any BS5252 or RAL colour 
  • Virtually ZERO maintenance 
  • Full range of connections/ancillary items available 
  • All tanks comply with BS EN ISO 9002 1994 Quality Assurance Registration 
  • Assembly instructions, joint flange sealant and fixings are provided
  • Fully encapsulated insulation to sides and lid
  • Close fitting and sealed lid which is removable for maintenance

Read More...

  • Cold Water Storage Tanks
  • Product Guides & Comparisons
Cold Water Tank Sizing

Cold Water Tank Sizing: How to Calculate Storage Volume for Multi-Storey Buildings

April 29, 2026

A technical guide to cold water tank sizing methodology for multi-storey buildings — covering demand estimation, resilience calculations, water age, Legionella risk, and a worked sizing example.

Confined Space Entry in Building Maintenance

Confined Space Entry in Building Maintenance: Obligations and Safe Systems

April 28, 2026

A practical guide to confined space entry obligations for building maintenance teams and contractors — covering the Confined Spaces Regulations 1997, permit to work, atmospheric testing, standby arrangements, and cold water tank entry.

Backflow Prevention

Backflow Prevention in Building Water Systems: Fluid Categories and Device Selection

April 23, 2026

A technical guide to backflow prevention under the Water Fittings Regulations — fluid categories 1 to 5, device types for cold water cisterns, the Type AG air gap requirement, and common compliance failures.

cold water system commissioning

Cold Water System Commissioning: Cleaning and Disinfection to BS EN 806-5

April 21, 2026

A practical guide to cold water system commissioning, cleaning, and disinfection in line with BS EN 806-5. Covers procedure, chlorination residuals, flushing, clearance for service, and handover documentation.