Another Satisfied NappySack Customer

East West Rail Alliance is a joint venture between Atkins, Laing O’Rourke, Volker Rail and Network Rail, working together to deliver a rail link between Oxford, and Cambridge and Ipswich. Our revolutionary NappySacks, self dosing bags which separate the solids, whilst automatically reducing the pH of the water, have been used on section 2C of Phase 2 of the project, near Bletchley. The NappySacks have had a noticeable impact in helping in the dewatering set up, and Jose Chicharro was full of praise for them;

‘I’m happy to report that your NappySack concrete washout bags are performing really well in my dewatering set up, and are removing 99% of the silt. I will definitely consider using more of your bags in the future, and would have no hesitation in recommending them’.

Details of NappySack, as well as other products aimed at making concrete washout much easier, can be found on our web site, www.bluerinse.wpengine.com

Danger of High pH Wash Water

The chemical reaction which causes fresh concrete to slowly stiffen and harden is quite complicated. A by-product of this process is the creation of a highly alkaline chemical that has a natural pH in excess of 12. Drinking water, by comparison, has a pH of around 6.5 to 7.

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