Modular Underground Tanks

Modular underground tanks are specifically designed for sites where the tank structure is to be hidden from sight, whether that be due to planning consent or other limiting factors. The convex shaped panels are specially designed to withstand external soil pressures, up to 300mm of covering soil, and pedestrian traffic. Deltic GRP modular underground tanks offer a significant advantage over steel and concrete underground tanks, as these tanks typically require an internal lining to prevent corrosion, whereas GRP is manufactured with a resin that prevents this.

Tank options

The Deltic system is a versatile and durable modular underground water storage solution, and comes with the following benefits and options:

  • Available in 1.22m wide modules
  • Height of tanks from 1m to 3m, in variable height increments
  • Side panels are internally flanged
  • Base panels are internally flanged
  • Lid panels are internally flanged with optional access manways
  • All tanks comply with relevant British Standards and Water Regulations
  • All internal steelwork is Grade 316 Stainless Steel
  • Capacities available to in excess of 1,000,000 litres
  • Virtually ZERO maintenance
  • Full ‘On-Site’ Installation service available
  • Full range of connections / ancillary items available
  • All supplied within the scope of our BS EN ISO 9002 1994 Quality Assurance Registration

Water tank Sizes

Standard capacities available from 30 litres to in excess of 9,000 litres Full sizing list available on reverse, if you cannot find your size talk to our technical sales team about our bespoke tank options today!

Fully Certified

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Stock Tanks

Our range of standard tanks are usually available as a stock item, complete with 25mm insulation and with or without a raised float valve housing.

Stock tanks can be delivered within 2-3 working days. Please note stock tanks are supplied undrilled with recess positions as detailed above. Recess provisions are the areas suitable for drilling and fitting connections

DEWEY WATERS FEATURES

Specialising in the manufacture of both one piece and sectional cold water storage tanks, our experience ensures that we are able to accommodate virtually all client requirements.

On time Delivery

Placing and receiving your order is a straightforward, hassle-free process.

Technical Advice

We provide high levels of technical knowledge, product choice and customer service.

Fully Certified

Dewey Waters is an accredited & certified GRP water tank manufacturer.

Experts Installation

60 years’ industry experience in both Water Storage and GRP industries.

On Time Delivery

Placing and receiving your order is a straightforward, hassle-free process.

Technical Advice

We provide high levels of technical knowledge, product choice and customer service.

Fully Certified

Dewey Waters is an accredited & certified GRP water tank manufacturer.

Experts Installation

60 years’ industry experience in both Water Storage and GRP industries.

TANKS CAPACITY 

CALCULATOR

We offer a water tanks calculator tool that will assist you in finding out the exact tank sizes and capacity required for your job.

Get a FREE Quote!

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