Site Preparation for Concrete Water Tanks

All water tanks are built in our factory to strict quality controlled methods and are fully water tested before delivery by a tilt tray bogey drive truck. We can provide a grader to level the site and are capable of delivering  our water tanks to remote locations.

TANKS PLACED ON THE GROUND

Water tanks off loaded via tilt tray truck. Overhead objects 4.2m clearance.
Truck to be able to back up to site and off load.
Truck can lift water tank over narrow gateways.

  • Step 1: Level off to firm solid ground and check level with screed and spirit level (not cut and fill). Ensure site is free from rocks, tree stumps etc
  • Step 2: Rake 100mm / 4in of loose granular material (coarse sand or blue metal) across site and level. Crusher dust not recommended.
  • Step 3: Do not compact sand or blue metal
  • Step 4: check that guttering is high enough to fit water tank selected
  • NOTE: If site is on rocky ground you will need 100mm of road base leveled & compacted before step 2

TANKS PLACED PARTIALLY IN GROUND

Water tanks can be sited in ground if ramp is provided to enable truck to reverse into excavation (20 degrees), or alternatively craned in by others.

  • Step 1: Dig square hole 1m larger than the diameter of the water tank. Dig ramp into hole (or alternatively craned in by others)
  • Step 2: Place screed and spirit level across site and check level.
  • Step 3: Put 100mm / 4in of loose granular material (coarse sand or blue metal) into hole and level. Crusher dust not recommended.
  • Step 4: Do not compact sand or blue metal
  • Step 5: Back fill immediately and connect water tank to down pipe or 1/4 fill with water before rainfall.
  • NOTE: If site is on rocky ground you will need 100mm of road base leveled & compacted before step 2

TANKS PLACED FULLY IN GROUND

Water tanks can be placed in ground i.e. top level with ground or underground with riser over a manhole.


  • Step 1: Dig square hole 1m larger than the diameter of the water tank. Dig ramp into hole (or alternatively craned in by others)
  • Step 2: Place screed and spirit level across site and check level.
  • Step 3: Put 100mm / 4in of loose granular material (coarse sand or blue metal) into hole and level. Crusher dust not recommended.
  • Step 4: Do not compact sand or blue metal
  • Step 5: Back fill immediately and connect water tank to down pipe or 1/4 fill with water before rainfall.
  • NOTE: If site is on rocky ground you will need 100mm of road base leveled & compacted before step 2
WARRANTY: All work fully guaranteed. We use only the best materials.

SPECIFICATIONS: Engineer Designed AS3735 2001
Tank base: 42MPa, 125mm / 5in reinforced with F72 mesh and N12 rod
Tank walls: 42MPa, 45mm reinforced with 50x75mm galvanised welded mesh
Conical Roof - above ground tanks: 42MPa, 100mm concrete reinforced with 50x75mm galvanised welded mesh
Flat Top roof - in-ground/underground tanks: 42MPa, 100mm concrete reinforced with F72 mesh, N12 rod with 100mm concrete support column (3kPa live load)