Description
The RO Membrane Cleaner Acidic is a low-pH clean-in-place chemical for reverse osmosis and nanofiltration membranes. It dissolves inorganic deposits such as calcium carbonate scale, iron and manganese oxides and other metal hydroxides that build up on the membrane surface, especially in the last elements of a plant. Removing this scale restores permeate flow, lowers feed pressure and improves salt rejection.
When to use an acidic cleaner
- Salt passage increasing, especially in the second stage
- Feed pressure rising to maintain the same output
- Hard or iron-rich feed water from wells
- Antiscalant dosing interrupted or under-dosed
- White or reddish-brown deposits visible in vessels
In a typical CIP, an alkaline clean is done first to remove organics, followed by the acidic clean for scale.

Typical product data
| Type | Acidic membrane cleaner (liquid) |
| Target fouling | Carbonate scale, iron, manganese, metal oxides |
| Cleaning pH | Typically around 2–3 (within membrane limits) |
| Pack | 20-litre can |
| Compatibility | Polyamide TFC RO and NF membranes |
Stay within the membrane manufacturer’s pH and temperature limits and follow the data sheet for dilution.
Preventing scale in Oman
Many groundwater sources in Oman are high in hardness, bicarbonate and sometimes iron. Good pre-treatment, correct antiscalant dosing and sensible recovery limits reduce how often you need the RO Membrane Cleaner Acidic. We review water analysis and operating data to recommend dosing and cleaning frequency. See antiscalant and other chemicals in media and chemicals, plus replacement membranes if cleaning no longer recovers performance. For background, see Wikipedia.
CIP service
Farz Water performs on-site membrane cleaning with a portable CIP skid, logs before-and-after performance, and advises on further action.
Frequently asked questions
Can I use it for sulphate or silica scale? Those need specialist cleaners. Send us your water analysis and we will advise.
Is it hazardous? It is an acidic product. Use gloves and goggles and follow the safety data sheet.
Why buy the RO Membrane Cleaner Acidic 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 Membrane Cleaner Acidic 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 RO Membrane Cleaner Acidic in Oman
Farz Water supplies membrane chemicals and CIP services across Oman. Contact us or call / WhatsApp +968 9455 4533.







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