Two Piece Tanks

Our Two Piece Tanks offer a vast range of standard and metric sizes that are built and fully tested to all relevant worldwide standards.

As well as these we can also manufacture made to measure Bespoke Two Piece Tanks to meet your requirements.

Two Piece Tanks



Two Piece Tanks are designed for Accessibility



Two Piece Tank Guide

Two Piece Tank Guide
  • Two Piece Tank Guide

Two Piece Tank Guide



All Decca Tanks are manufactured from top quality glass fibre impregnated with polyester resin. Based on the size of the unit under construction, integral treated timber reinforcements are encapsulated within the laminate. Units have a clean, smooth internal finish.

All our materials are WRAS & WRC approved.

  • Will Not Corrode
  • Longer Life
  • Normal Fittings Can Be Used
  • Lightweight & Extremely Strong
  • Hygienic, Environmentally Friendly
  • Complies To Bylaw 30 Regulations For Potable Wholesome Water



Two Piece Tank Parts & Accessories

DECCA can also provide a full range of Tank Connection Kits, Accessories and Parts.
If you need anything at all for your Tank we can supply it.


Ball Valves & Drop Arms
Tank Connectors
Level Switches
Tank Lids
GRP Boards
GRP Catchment Trays & Bases
Tank Connectors


Bespoke Stillage designed to raise the Tank height.

Water Tank Stillage



Two Piece Tank Enquiry



DECCA Aftercare

Due to our extensive experience in water Tanks we have recently launched our new Repair and Maintenance Division.
We offer an onsite Consultancy programme giving the client a recommendation of works in a detailed report.

Aftercare works included but not limited to recommendations are:
Tank Upgrades, Full Tank Services, Connection or Fitting Replacements, Cleaning and Chlorination, Tank Strip-Out and Replacements.

To Enquire about a DECCA Aftercare

Please contact our After-Care Department here


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