biosand filter

English: BioSand filtration uses a combination...

Image via Wikipedia

harvesting rainwater will b d standard n d near future…..i.e. fresh water will b so expensive dat pple will eventually utilize free water fr above….water filtration will b needed so one can use rainwater 2d fullest. biosand filters can help….

here’s a good animation on how a biosand filter works…


1 Comment

  1. May 24, 2013 at 10:24 pm

    Good day! I know this is kinda off topic but I’d figured I’d ask.
    Would you be interested in trading links or maybe guest authoring a blog post or vice-versa?

    My site addresses a lot of the same topics as yours and I think
    we could greatly benefit from each other. If you might be interested feel free to shoot me an email.

    I look forward to hearing from you! Great blog by the way!

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