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  1. S

    Not strictly water softner, but

    it might be interesting for you to participate in a class project (another survey!) on water treatment. the survey is about devices for treating water for daily use: what methods are used, preferred and by who. Here is the link Thank you for your...
  2. S

    Survey: Solar use in Africa

    Hello everyone, As you may have realized immediately, I am still very new here. However, I would like to invite you to take part in our survey: QuestionPro Survey - swh I am a university student in Austria (Europe). I voluntary participate in a number of projects for promoting the use...
  3. S

    Hi everyone,

    I am new here, just wanted to say hello all :)
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