Description
The RO Pressure Tank 3.2 Gallon stores purified water from a home reverse osmosis system so it is ready when you open the RO faucet. Inside the steel or plastic shell, a flexible bladder separates the water from a pre-charged air chamber. As the tank fills, the air compresses and pushes water out to the faucet with good pressure.
It is the standard tank size for most 5, 6 and 7-stage home RO systems in Oman.
When to replace an RO Pressure Tank
- Weak or sputtering flow from the RO faucet even when the tank feels heavy
- The tank holds very little water (bladder ruptured or air charge lost)
- Rust or corrosion on the shell, common in humid coastal areas
- Leaks at the base or valve
- Bad taste from an old tank
Key features
- 3.2 US gallon nominal capacity
- Food-grade butyl bladder
- Pre-charged air chamber (approx. 7–10 psi when empty)
- 1/4 inch tank ball valve included
- Stable base for under-sink installation
Typical specifications
| Nominal volume | 3.2 US gallons |
| Usable water | Approx. 7–9 litres (depends on line pressure) |
| Pre-charge | Approx. 7–10 psi (empty) |
| Max pressure | Approx. 100 psi |
| Connection | 1/4 inch thread with ball valve |
Checking the air pressure
If your tank delivers little water, first close the feed, empty the tank through the faucet, then check the air valve with a tyre gauge. It should read about 7 to 10 psi with the tank empty. If it is low, top up with a hand pump. If the bladder is damaged, replace the RO Pressure Tank. See more RO spare parts and complete RO systems. For background, see Wikipedia.
Frequently asked questions
Will a bigger tank give more water? Yes, but it takes longer to refill. 3.2 gallons suits most families.
Can you replace it for me? Yes, Farz Water technicians replace tanks during service visits across Muscat.
Why buy the RO Pressure Tank from Farz Water?
Farz Water is a water treatment supplier based in Muscat, serving homes, businesses and projects across the Sultanate of Oman. When you choose the RO Pressure Tank from us, you get more than a product in a box. Our team checks your water and site conditions first, so the equipment you buy matches your actual needs instead of a generic catalogue size. We explain the options honestly, including when a simpler or lower-cost solution will do the job.
We stock common spares and consumables in Muscat, so filters, lamps, membranes and fittings are available when you need them. Our technicians install and commission equipment, show you how to operate it, and return for scheduled service if you choose an annual maintenance plan. If anything is not working as expected, you can reach us directly by phone or WhatsApp and speak to someone who knows your system.
Order an RO Pressure Tank in Oman
Farz Water stocks RO tanks and spares in Muscat. Contact us or call / WhatsApp +968 9455 4533.
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