Sodium Hypochlorite 14/15% 20L (25kg) Poly
£19.95
(QTY 32+)
£18.95
Quantity discounts available
| 1-16 | 32+ |
|---|---|
| £19.95 | £18.95 |
£19.95 each
Sodium hypochlorite is an alkaline inorganic chemical compound with the formula NaOCl (also written as NaClO). It is a powerful disinfectant and bleach, commonly found in household bleach, used for cleaning, stain removal, and water purification. It is also used in industrial settings and for exterior cleaning like patios and driveways. Highly effective for cleaning stubborn stains, mold, and algae from patios, driveways, and roofs. Crucial use for disinfecting large public water supplies to prevent the spread of diseases. Please click here to view our delivery information and costs.
Uses and applications
Sodium hypochlorite 14/15% is commercial-strength liquid chlorine — roughly three times the strength of household bleach — and the go-to disinfectant for water treatment and site hygiene.
- Swimming pool and spa chlorination
- Drinking water and borehole disinfection — often dosed alongside poly aluminium chloride (PAC) coagulant
- Dairy, farm and food-plant hygiene
- Patio, driveway and render cleaning — shifts algae, mould and stains
Strengths and pack sizes
This 20L (25kg) poly is our most popular handling size. Also available as a 25L (31kg) poly, 205L drum and 1,000L IBC for high-volume users, all at trade prices with fast UK delivery.
Which pack size is right for you
This 20L (25kg) poly is our best-selling size, well suited to regular top-up orders where storage space is limited. If you're using more regularly or at a larger site, the 25L poly holds more per container, the drum suits continuous or higher-volume use, and the IBC is the most economical option for the highest-volume users who want to reorder less often. See the full range on our sodium hypochlorite hub. If you're not sure which suits your usage, get in touch and our team can help you decide.
Handling and safety
Corrosive to skin and eyes — wear gloves and goggles and follow the SDS. Never mix sodium hypochlorite with acids or other cleaning chemicals: doing so releases hazardous chlorine gas. Store cool, closed and out of sunlight. For full handling requirements and your site's own COSHH assessment, see our safety information page and the product's safety data sheet, or refer to HSE COSHH guidance for chemical storage and handling.
Frequently asked questions
How long does sodium hypochlorite keep?
Strength declines naturally — expect around 1% available chlorine loss per month at cool storage temperatures, faster in heat or sunlight. Buy quantities you will use within a few months.
Is 14/15% hypochlorite suitable for swimming pools?
Yes — it is the standard commercial pool chlorine. Dose via your controller or by hand to maintain 1–3 mg/l free chlorine, and check pH stays in range as hypo pushes pH upward.
What dilution should I use for exterior cleaning?
For patios and render, a 1:10 to 1:20 dilution is typical. Wet the area, apply, allow contact time, then rinse thoroughly. Protect plants and rinse runoff away from beds.