I refer to your article on liquid bleach POU. Control Chemicals based in South Africa is partner PSI Nigeria to introduce Waterguard powder which is the alternative new innovation that will far out-weighs liquid bleach use. One major advantage is the shelf life is 2 years and I have highlighted further information below:

Liquid sodium hypochlorite-based solutions for water disinfection in under-developed communities face 2 important technical
challenges: i) the inherent limitations of the chemical and ii) the challenge posed by‘real world’ conditions.
In summary:
• The true active concentration of sodium hypochlorite seldom equals the theoretical. So re-packers constantly need to assay
the active ingredient content, pH and ambient temperature to mitigate against decomposition.  
• Even after packing bleach remains unstable – particularly at temperatures at or above 30°C.  Repetitive opening and closing of containers at the point of consumption tends to accelerate this process.
In response to field research and feedback from NGO Watsan Operatives our Company concluded that there was a better, sustainable solution to the ‘bleach problem’. We set about developing a dry hypochlorite blend that we believe overcomes all
the shortcomings of liquid bleach. A formula that:
• Bleach powder is much more active (Per gram) than ordinary calcium hypochlorite because the formulation has been enhanced with an additive to raise the oxidation-reduction potential (ORP) in solution.
• Can be formulated to meet greater accuracy at the point-of-use.
• Remains stable even at elevated temperatures (over 24 months) .
• Will not be classified as hazardous for transport
The preliminary name for the blend: ‘Liquid Chlorine Powder’ was adopted because it informs the end user that, in solution, the chemistry is essentially unchanged – ie they are still getting/using a hypochlorite. Packaging options include:
Bleach powder is fine and free-flowing so it can be poured from a bottle just like liquid chlorine. The possibility also exists to produce a cap with a double
measurement action (top & bottom) similar to that used by PSI Madagascar under the ‘Clorin’ brand which allows users to measure for both 20lt and 5lt volumes which will now be launched in Nigeria under the WaterGuard branding.

Thanks and I look forward to having further discussion on this new innovation.

Kind regards,
Praven Pillay
Global Sales & Marketing
Control Chemicals SA
Other email: pravenp1@gmail.com
Skype: praven.pillay