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Limited plantroom space?

Maximise your water tank capacity with our TIF Tanks

Capacity Types

Capacity Types explained

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Tank Options

Option and Ancillaries

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Clearance Guides

Support & Clearance

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Download the Brochure

View Online or Download 

Read more

Capacity Types

Capacity Types Explained

Read more

Tank Options

Option and Ancillaries 

Read more

Clearance Guides

Support & Clearance

Read more

Download the Brochure

View Online or Download 

Read more

Capacity Types

Capacity Types Explained

Read more

Tank Options

Options and Ancillaries 

Read more

Clearance Guides

Support & Clearance

Read more

Download the Brochure

View Online or Download 

Read more

totally internally flanged tank

No Floor Space? No Problem.

Dewey Waters totally internally flanged tanks, (TIF) have no base to side joints or external corner joints – make this tank option 100% buildable and maintainable from the inside, unlike other internally flanged or externally flanged tanks on the market.

TIF GRP Water Tank Specifications

  • Insulated or uninsulated options available depending on the application.
  • Full range of connections/ancillary items available.
  • Twin Compartment options available to provide continuous supply during maintenance periods.
  • UV stabilised external gelcoat finish
  • Internal isophthalic gelcoat surface to prevent bacterial growth
  • Manufactured in accordance with BS EN13280:2011
  • HCFC & CFC free encapsulated Insulation
    • 25mm – 0.85 w/m2 Deg C
    • 50mm – 0.40 w/m2 Deg C
TIF Side Access Ballvalve Box
Totally internally flanged tank

Limited Tank Clearance Available?

TIF Tank Clearance Requirements are:

​50mm clearance on 3 sides, minimum 500mm on the 4th side and 750mm headroom clearance.

Minimum Space? Get Maximum Storage!

Starting with the minimum length and width of 1000mm x 1000mm (which is made up of 4 no corner panels), you can customise your tank length & width using 250mm, 500mm, 750mm & 1000mm panel increments. This gives you greater flexibility versus other ‘Internally Built’ tank systems that can only provide 500mm & 1000mm options.

Awkward Spaces

‘L’ shape tank options available (min width of 1000mm in any section).

TIF Tank Solutions for Maximum Capacity

The below examples show the difference in tank construction of a totally internally flanged tank and a internally flanged tank.

A totally internally flanged tank is built from the inside, allowing for maximum volume.

Internally flanged tank with base & side joints does not allow for full inside construction, this increases the clearance requirements around the tank reducing the water tank volume in restricted areas.

 

A Totally Internally Flanged Tank (TIF) 

Internally Flanged Tank with base & side joints

True totally internally flanged tank

A Totally Internally Flanged Tank (TIF) – No base to side joints or external corner joints. This tank can be constructed from the inside out.

Internally flanged tank

Internally Flanged Tank with base & side joints, unable to construct 100% from the inside out. (Not a TIF)

Calculator Tools

Use our popular tools to help calculate your tank size

Calculator Tools

Use our popular tools to help calculate your tank size

dewey waters water tank calculator tools

TIME TO SHARE THE KNOWLEDGE

Visit our Knowledge Hub for supporting documentation, technical
data, downloads and more..

Case Studies

Our latest projects / See all case studies

Hotel cold water storage tank

LONDON HOTEL

Water Storage Tank Installation

Supply & install reduced capacity wet riser
tank & potable cold water storage tank

School Sprinkler Tank Installation

SCHOOL SPRINKLER TANK

Water Storage Tank Installation

Manufacture & Install a Hot press sectional
water storage tank with externally flanged
sides and base levelling steels.

dairy-crest-water-tank-install

SECTIONAL WATER STORAGE TANK

Water Storage Tank Installation

Manufacture & Install a Hot press sectional
water storage tank.

Deeside College Water Tank Installation

COLLEGE WATER TANK INSTALLATION

Water Tank Installation

To supply, deliver, offload, position, and
install a GRP hot press externally
flanged sectional tank.

airport-fire-suppression-tank.

BRISTOL AIRPORT

Fire Suppression Tank Installation

Manufacture & Install a Fire suppression
water storage tank

sectional water tank

POLICY HEADQUARTERS

Water Storage Tank Installation

To supply, deliver and install 1 x insulated
sectional GRP water storage tank,
8000 litres nominal capacity.

hoe-valley-school-water-tank-installation

HOE VALLEY SCHOOL

Water Storage Tank Installation

Manufacture & Install a selection of water storage
tanks, hot press, one piece, sectional tanks

taunton-care-facility-water-tank-installation

RESIDENTIAL HOUSING COMPLEX

Water Storage Tank Installation

Manufacture & Install a Totally internally flanged tank

Priory Mechanical Services
“The installation process was smooth and very efficient.

We will continue to use Dewey Waters as the service we receive is always excellent.”

Product supplied: Sectional Tank HLU TIF 2.25m x 1.00m x 2.00m

★★★★★

Priory Mechanical Services

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.