hii Link haipo kwenye lugha yako, kuangalia kwa: English (en),
au tumia ufasiri wa google:  

http://www.cawst.org/

With the right knowledge and skills anyone, anywhere can take ownership of their own water, sanitation and hygiene. CAWST empowers people to take action in their homes and neighbourhoods, builds resiliency, and ensures appropriate solutions for the local water context.