Concrete water tank information
Concrete Water Tanks built onsite and to suit your exact needs
Underground and Aboveground concrete water tank solutions
Tank sizes
13 Different standard round sizes ranging from 16,400L up to 360,000L with various roof loading from pedestrian traffic only to W80 bridge loading for heavy vehicles
North Coast Tanks also custom build tanks in various sizes and shapes. For example: square, rectangle or oval shaped tanks designed to suit your specific site requirements.
All tanks are engineered and are able to be above ground, partially buried or completely buried with various load ratings capable of having fill or traffic on top of them.
Actual tank volume may vary depending on tank loading, engineering and plumbing requirements
Capacity (litres)
Capacity (gallons)
Diameter
(mm)
Height
(mm)
Excavation (min)
Tank designs
Engineered Designed Concrete Water Tanks
All North Coast Tanks are engineered designed with a minimum 150mm thick walls and floor, up to 200mm thick walls and floor on our larger tanks. North Coast Tanks also use as a minimum 72 reinforcing mesh in conjunction will 12mm reinforcing bar. Our larger tanks use either 82 reinforcing mesh or 92 mesh as well as 16mm reinforcing bar throughout.
Standard tank
In ground to maximum depth of 2.3m
For non-traffic areas
Suits light load, eg. clothes hoist (not supplied)
Suitable as retaining wall
Can be covered with garden-mulch (but not soil)
Light load bearing tank
Rated for foot-trafic
Suitable as base for light construction, eg, pergola, garden shed, court-yard, etc.
Can be covered with up to 300mm of fill.
In ground to maximum depth of 2.3m
Suitable as retaining wall
Medium load bearing tank
In ground to maximum depth of 2.3m
For light vehicle load areas
Suitable as base for carport or driveway
May have slab constructed over top
Suitable as retaining wall
Underground tank
Can be buried to a variety of depths in both trafficable and non-trafficable areas
Purpose built: eg. great for storm-water harvesting
Specifications depend on the individual site conditions & customer requirements.
May have slab constructed over top
Concrete Water Tank Repairs
Internal "spray out" repair
If installed correctly by a licensed and experienced operator, a concrete water tank should last a lifetime.
Was it installed by an inexperienced operator? Has age finally caught up with your concrete water tank? Have tree roots ruined your tank? Are you losing water due to poor workmanship?
If you have answered YES to any of these questions North Coast Tanks may have the solution for you. With over 40 years on-site experience we have developed a method of restoring old cracked concrete water tanks back to life. North Coast places reinforcing steel over all internal walls and floor, then re-sprays concrete over the entire internal walls and floor resulting in a seamless concrete finish.
Swimming Pool to Water Tank Conversions
Do you have an inground pool that you want to fill in or take out?
Pool removal can be expensive but you can use your unwanted pool to your advantage and have North Coast Tanks convert it to a water tank.
Converting your swimming pool to a water tank allows you will recover usable space, eliminate pool maintenance costs and save on water consumption costs. Call us now to discuss how we can help you.
Standard inclusions
Above ground tanks
One 32mm Brass outlet socket
One 32mm Brass hex nipple
One 32mm Brass gate valve
One 400mm or 500mm mosquito proof inlet stainer
Two 100mm pvc overflow sockets with a 100mm
mosquito proof screen
Lockable childproof aluminium access hatch
In ground tanks
One 32mm brass outlet socket
One 32mm suction line PVC Pressure
One 32mm Philmac Footvalve
Two 100mm pvc overflow sockets with a 100mm
mosquito proof screen
Lockable childproof aluminium access hatc
Site requirements & construction details
Level pad
In order to maximise the life of your concrete water tank it is imperative that your tank is built on firm consistent natural ground (no fill). Should this not be achievable it is possible to use concrete piers to ensure the stability of the tank. Once the pad is cut and level, we also require approximately 50mm to 100mm of 10mm or 20mm drainage gravel spread evenly over the base of the pad.
Excavations
All tank prices quoted DO NOT include any site preparation. North Coast Tanks has a team of experienced sub-contractors that have been working with us and our team for many years. North Coast Tanks are more that happy to advise on pricing for the preparation of your site for your new concrete water tank. Should you be happy to proceed we will also be there to supervise the excavation.
Access
Difficult access is North Coast Tanks speciality. Whether your site is situated on the beautiful Blackall Range, The D'Aguilar Range or at the beach at Teewah on Noosa's North Shore. North Coast Tanks has built concrete water tanks all-over South-East Queensland and Northern NSW. If we can get a concrete truck within approximately 50m, we can generally build you a Concrete Water Tank.
Schedule
Generally North Coast Tanks average lead time is 6 to 8 weeks. That being said should you require your tank sooner please give us a call as we regularly leave vacancies for Builders and Commercial jobs so we will be able to accommodate your build schedule.