Bianco Domestic Pressure Tank 4 Bar Pre-Charge, Vertical, 3-24 L
Suitable for cold water distribution, irrigation setups, and consistent household pressure
- Slim vertical design: Takes up minimal floor space, thus making it ideal for tight pump sheds, cupboards, as well as under-bench installs.
- Protects your pump: Reduces rapid on/off cycling, helping to extend motor and switch life while lowering energy use.
- Safe for drinking water: All wetted parts are AS/NZS 4020 certified and food-grade, ensuring clean, neutral-tasting water.
- Durable construction: UV-resistant coating as well as corrosion-proof fittings for reliable indoor or outdoor service.
- Flexible sizing options: Available in 3, 8, 12, 18, and 24 litre models. Suitable for single taps, small households, or rural lifestyle.
Compact and reliable, the Bianco domestic pressure tank vertical range of 3–24 litres is designed for small domestic pump systems as well as tight spaces where steady water pressure is essential. Moreover, each tank comes pre-charged to 4 bar for easy installation, reducing pump cycling and delivering smoother flow across your household water supply. Select the right tank size to match your pump and water demand.
Enquire now about the Bianco domestic pressure tank 4 bar range.
Energy-saving small vertical pressure tanks: Reduce pump cycling for smoother, quieter operation
The Bianco pressure tank NZ stores a small reserve of water under pressure, so your pump doesn’t need to start for every minor demand. By reducing frequent stop-start cycles, it lowers energy consumption, minimises wear on the motor and pressure switch, and keeps the operation quieter. The result is steadier household pressure, increased pumping efficiency, and a longer-lasting water system with reduced maintenance requirements over time.
Versatile vertical pressure tank for domestic and lifestyle applications
Designed for cold sanitary water, these compact vessels work seamlessly with jet, multistage, centrifugal, and submersible pumps. Use them in household booster sets, lifestyle block irrigation, or even caravans and tiny homes where space is at a premium. Larger sizes in the 3–24 L range are perfect for small households, while the smallest models provide reliable support for point-of-use installations.
Bianco pump tank NZ: Choose the right size for your needs
The Bianco vertical pressure tank range is available in 3, 8, 12, 18, and 24 litre models, providing flexibility to match your system perfectly. Smaller tanks are ideal for compact pump sets, caravans, or single-point outlets where space is limited. Larger sizes give a more extended drawdown, reducing pump starts, improving efficiency, and ensuring steadier water pressure for small households, lifestyle blocks, or light-duty irrigation setups.
Looking for more products? You can also view our larger Bianco Vertical Pressure Tank, 4 Bar Pre-Charge, 40–450 Litres or the compact Bianco Horizontal Pressure Tank, 4 Bar Pre-Charge, 24–60 Litres to find the right fit for your system.
Bianco domestic pressure tank 4 bar: Safe, durable, and built to last
Every Bianco pressure tank is manufactured to AS/NZS 4020 standards, meaning it is certified safe for contact with drinking water. The food-grade diaphragm and lining won’t alter taste or odour, while the UV-resistant epoxy finish protects against outdoor conditions. A stainless-steel water connection and serviceable air valve ensure long-lasting, trouble-free performance. Finally, backed by a 5-year replacement warranty, this tank is engineered for dependable service in New Zealand conditions.
Not sure which size you need? Call the Aqua Works team on 0800 278 288 — we’ll match the right tank to your system.
Additional information
| Nominal Volume | BIA BPT-3, BIA BPT-8, BIA BPT-18, BIA BPT-24 |
|---|
Specifications
Specifications for Bianco domestic pressure tank 4 bar
| Models | Nominal volume | Nominal Draw-off | Continuous max. Temp. | Continuous max. pressure | Port size | Diameter (mm) | Height (mm) |
| BIA BPT-3 | 3L | 1L | 90°C | 10 Bar | 1″ BSP | 140 | 220 |
| BIA
BPT-8 |
8L | 3L | 90°C | 10 Bar | 1″ BSP | 203 | 304 |
| BIA
BPT-18 |
18L | 6L | 90°C | 10 Bar | 1″ BSP | 279 | 375 |
| BIA
BPT-24 |
24L | 9L | 90°C | 10 Bar | 1″ BSP | 290 | 415 |
For larger capacity, explore the Bianco 40–450 L 4 bar pre-charged vertical pressure tank, or select the Bianco 24–60 L horizontal model when a sideways installation is the better fit.
FAQ
Common pump problems and solutions with the Bianco domestic pressure tank 4 bar
Why is my Bianco pressure tank losing pressure?
A drop in pressure usually happens when the air cushion inside the tank decreases. This may be due to normal air loss over time, a faulty air valve, or the pre-charge not being set correctly at installation. When the air charge is too low, the pump has to run more often, which reduces system efficiency and increases wear on the pump. The fix is to fully drain the tank, then recharge it to about 2 psi below the pump’s cut-in setting. Regularly checking this helps prevent ongoing issues.
How can I tell if the bladder has failed?
A ruptured bladder is one of the most common long-term issues. When it fails, the tank becomes waterlogged and loses its ability to hold air. You’ll notice the pump cycling on and off constantly, weaker or fluctuating water pressure, and the tank feeling heavy and solid when tapped. Unfortunately, once the bladder is damaged, the tank usually needs to be replaced, as repair is not cost-effective.
Why does my pump keep switching on and off so often?
Frequent cycling, known as short cycling, is a clear sign the tank isn’t maintaining proper air pressure. This can be caused by an undercharged tank, bladder damage, or waterlogging. Short cycling not only creates poor water pressure at your taps but also significantly shortens the pump’s lifespan. Addressing this quickly helps avoid costly pump replacements.
How long will a Bianco pressure tank last?
Most Bianco tanks are designed to last between 5 and 10 years, depending on usage, installation, and water quality. The tanks are built with cold-rolled carbon steel shells and epoxy lining for durability, plus stainless steel connections to resist corrosion. However, harsh water conditions or lack of maintenance can shorten the lifespan. Keeping an eye on air charge and checking fittings regularly will extend service life.
Can a Bianco pressure tank get waterlogged?
Yes. A waterlogged tank is one that has lost its air cushion, either because the bladder has burst or the air has leaked out. This leaves the tank completely filled with water, which prevents it from storing pressure. The result is poor water flow and constant pump cycling. While sometimes recharging air can help, a ruptured bladder usually requires a tank replacement.
How do I recharge the air pressure?
Turn off your pump and open a tap until no water remains in the tank. Then, using a tyre pump and a pressure gauge, inflate the tank at the air valve until it’s set to about 2 psi lower than your pump’s cut-in pressure. For example, if your pump cuts in at 35 psi, set the pre-charge to 33 psi. This simple step keeps the pump and tank working in balance, reducing strain and extending their life.
Why is my Bianco tank leaking?
Leaks may appear at threaded connections, seals, or around the brass fittings. In many cases, resealing or tightening fittings can stop the problem. However, if the leak is coming from the steel shell itself, it means the tank body has corroded and should be replaced. Continuing to use a leaking tank can damage the pump and reduce water quality.
When should I replace my Bianco pressure tank?
If the bladder has failed, the steel body shows signs of rust or leaks, or the pump keeps short cycling even after adjustments, replacement is recommended. Using a failing tank puts unnecessary strain on your pump and can interrupt your water supply. Replacing it on time restores smooth, reliable water pressure and protects your overall system.
