XXGRP water storage
XX
XXDesign and manufacturing
XX
XXTank construction
XX• Flange types
XX• Clearance requirements
XX• External plan sizes
XX• Base supports
XX• Air gap calculator
XX
XXFire fighting sprinkler systems
XX
XXPhoto gallery
XX
XXGRP one-piece tanks
XX
XXContact


XX
XXGRP Sectional water tanks
XXbrochure (PDF 1.2mb)

XX
XXSectional Tank specification (PDF 432kb)

XX
XXOperation/maintenance manual (PDF 1mb)

Base supports

Option 1 - Flat foundation
For IFB and IBT tanks. Flat screen concrete foundation to be level and not vary more than 2mm in any one metre, measured laterally or diagonally.

Option 2 - Close centre beams
IFB and IBT tanks may also be supported by steel bearer beams.

Option 3 - Pier walls
For EFB tanks allowing self drain. 1m centres required.

EFB Base reference (PDF)
Foundation selection decision trees	Non-divided
	Divider across width
	Divider across length
Base drawings	Parallel elevated pier walls or bearer beams
	Perpendicular elevated pier walls or bearer beams
	Perpendicular elevated pier walls with parallel bearer beams (for use with a 1/2m factor width tank)
	Parallel elevated pier walls with perpendicular bearer beams (for use with a 1/2m factor length tank)
	Parallel elevated pier walls with perpendicular bearer beams (for use with a central divider in an odd length)
	Perpendicular elevated pier walls with parallel bearer beams (for use with a central divider in odd width)

IFB Base reference (PDF)
Base drawings	Flat concrete slab foundation
	Close centre bearer beams
	Timber bearer beams within loft