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Duracrete concrete storage tanks use self-compacting concrete technology resulting in a durable product with a high-quality finish. Our fully integrated manufacturing process includes our certified ready mix plant to our precast factories, with delivery direct to your site by our experienced operators on our specialised crane fleet.
Our team are knowledgeable and here to assist you. To discuss your requirements for a precast concrete water tank, please contact Bowers & Son Ltd today.
for drawing of each block we stock
Call, email or visit our sales office to discuss your individual requirements. Our specialised sales staff will discuss tank options including a delivery timeline and book a date delivery.
Once your order date has been confirmed we will call to confirm delivery least a day or two before your scheduled delivery. N.B. Please advise any special requirements.
Our large range of tanks is well suited to having accessories and services added e.g. fire fighting fittings, anti-floatation sills, extra manholes, inlet muffle pipes, epoxy coatings, water pumps, water monitors etc. Please enquiry with our sales team.
Bowers & Son Ltd, Duracrete tanks feature a 50 year design life and have a comprehensive 10 year repair or replace warranty.
If you wish to submit a warranty claim, fill out your details HERE
Producer Statements (PS1) are available for most tanks upon request. Typically a regional council may request a copy of the PS1 re regulatory requirements or an engineer for design requirements e.g. if tanks are to be buried under a driveway. We can also offer detailed sketches of most products to assist with your decision making.
If you require a PS3 you will need to ask your installer e.g. plumber/drainlayer, to produce this for you. As the manufacturer, we cannot provide this.
Bowers & Son Ltd produce Duracrete tanks under licence and are a long established Te Awamutu family business. The family pride themselves on manufacturing the complete product from initial concrete batching through to tank manufacturing and finally site delivery and placement. All work is completed “in-house” with delivery via a fleet of Hiab delivery trucks piloted by specialist crews.
Duracrete tanks come ready to be used after site connections and subsequent water fill. All water tanks have overflow siphons fitted, balance pipe and drain bungs installed/sealed, manhole lid bolted down, air vent fitted and at least three knock-outs ready for inlet pipe to be fitted. N.B. All site connections etc are complete by your on-site professionals.
Tanks are cleaned as the final step in production before tank base and roof are sealed together in the factory. During road transport and placement some light internal dusting may on occur which will settle on the tank floor. Residues are not unusual and may include concrete as well as light building debris from your build. Deposits vary depending on what filtration is used before and after the tank. Any tank should be cleaned within 12 months of installation.
All materials as used in the concrete making process are suitable for potable (drinking) water. Lime as used in cement manufacture gives the concrete alkaline characteristics i.e. pH >7.0. The alkalinity of concrete works to offset the natural acidity of rain water pH ~6.0 with this being a unique property of concrete when used to manufacture water tanks. The pH will reduce over time with usage but is dependent on your chosen tank set up.
1. Ensure that the inlet to your tank is lower than your lowest stretch of spouting. An additional fall may be necessary depending on the distance between the source of water, which may be your house roof, and your tank.
2. To prevent undermining of the site, it is important to pipe the overflow away from the tank base.
3. The size of the site needed will depend on the width of your water tank. Contact us for these details.
4. Suitable site access is your responsibility. Please ensure there are no overhead wires, branches, buildings, gate posts or other obstacles blocking access of the loaded delivery truck. Our truck driver will take every care not to damage property but cannot be responsible for damage caused due to restricted access.
5. Ensure the ground is firm enough to take the weight of a loaded truck. If you have any doubts, chat with us before delivery.
6. Check there are no holes, drains or septic tanks that the truck could potentially fall into when delivering your tank.
7. If you intend backfilling, partially burying, or totally burying your tank, please let us know when placing your order. The tank can then be manufactured to take the additional stresses placed on it.
As acidic rainwater replaces the town supplied water, it must be allowed to flush through the tank as soon as possible to offset any alkaline tendency. In this case, higher water usage is beneficial.
To prevent syphoning, the overflow outlet from a tank should have an internal dropper that finishes about 300mm above the tank floor. At the top of this dropper, a small diameter hole should be drilled. Droppers help with water circulation and remove older water from the tank bottom. All tanks should have individual overflows with internal droppers.
To speed up the movement towards a typical water tank pH range (pH 7.5 to 8.5) a gradual dosing of the tank with either citric or acetic acid can be beneficial. Treatment may also require the use of a water conditioner such as Davey AquaSafe, or similar product.
Town supply has chemicals added to sanitise or control pH levels. These chemicals may lengthen the time it takes for the tank to achieve a typical pH.
Tubes/pipes connecting individual tanks should be as large as possible to encourage flow between tanks. At Bowers & Son Ltd, we recommend a 40mm or 50mm pipe is used. The bigger, the better.
If you are using a submersible pump, ensure a floating intake is used to draw water from the fresher uppermost layers of water.
To encourage air flow and eliminate residual concrete smell - partially open the lid, loosen the bolts, and then raise the lids with spacers of wood or similar. For semi-buried or above ground tanks, you can temporarily remove the safety vent. For safety, do not leave tank lids off.
Besides manufacturing Duracrete tanks, and offering affordable concrete water tanks prices, Bowers & Son Ltd also manufactures, supplies and delivers other quality products throughout the Waikato region. Our range includes concrete troughs for feeding and water, effluent tanks and wastewater storage for farmers. For construction Bowers & Son Ltd can supply ready mix concrete, concrete storage bunkers and retaining walls as well as concrete pipes.
When you order products from Bowers & Son Ltd, you are in professional hands. Simply contact us with your enquiry and we’ll look after you.
1872 Alexandra Street,Te Awamutu 3800
64 Otewa Road,Otorohanga 3900
Servicing the Waikato, Auckland, King Country, Coromandel, Bay of Plenty and Taranaki. © 2018 – 2023 Bowers & Son Ltd.
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