Aqua, Hydra or Simply Water; It Needs To Be Clean

I don’t think I need to highlight the importance of clean drinking water to you elite crowd, but it is a major issue in many developing countries and war-torn zones. When designer Martin Bolton conducted a survey of the potable water that most rural houses in South Africa used, he was appalled at the quality and decided to do something about it. He devised an ingenious Potpaz Ceramic Filter system that is aimed at being a low cost water treatment device optimally suited to South African rural conditions.

Trying to keep the authenticity of the explanation of its working, here is what Martin has to say about the filter’s working:

Operation of the filter unit

The ceramic filter element is filled with water to be filtered, the water then saturates the ceramic filter element and slowly filters through the pores at a rate of between 1.5 to 2.5 liters per hour, provided the filter is kept full (as stated on the leaflet received from the existing filter element manufacturers). The filter needs the weight of the unfiltered water in the element to create sufficient pressure to push the water through the pores. The water filtering through the filter element drips into the receptacle where it is stored, ready for consumption. Users’ tap water from the plastic spigot attached through the receptacle wall. The covering lid prevents insects and dust from getting into contact with the filter element.

It has been shown that the filter element is able to improve the health related microbial quality of the water by means of the action of filtration. Effectiveness of the filter element, with regards to disinfection, can be increased with the application of colloidal silver to the filter element.
Colloidal silver is an effective antibacterial water treating agent in the form of tiny silver particles suspended in liquid. It is a disinfectant that prevents bacterial growth in the ceramic filter and assists in inactivating the bacteria in the filter. It is applied to the Potpaz filter in the form of a painted-on solution, or by dipping (after the firing process) thereby allowing the solution to soak into the porous ceramic filter where it remains. A study indicates that after 15 years in operation, the colloidal silver is still effective in the ceramic filter. The only routine maintenance of the filter components is as follows: The filter element needs to be scrubbed and rinsed once the flow-rate decreases considerably (possible once a month), and the inside of the receptacle needs to be cleaned with soap and water once a month.

Designer: Martin Bolton


  • Adam says:

    Is there any alternative to Colloidal silver? I’ve heard that it has great negative impact on waterlife.

  • M.S.W. says:

    Wonder if the designer will be looking to replace the colloidal silver with solar powered UV LED’s to disinfectant the water instead?

  • Adam says:

    M.S.W.: If it’s going to be used i large scale it has to be really simple with minimum amount of parts.



  • Heyaa i’m for the first time here. I came across this board and
    I in finding It truly helpful & it helped me out a lot.
    I hope to offer one thing back and aaid others like you aidd me.

  • I do not create a bunch of comments, however i did
    a few searching and wound uup hwre Potpaz Ceramic Filter For Rural Households by Martin Bolton
    Yanko Design. And I actually do have a couple
    of questions for you if you tend not to mind.
    Is it just me or does it appear like a few off these comments appear like coming from brain dead folks?
    😛 And, if you are posting on other social sites, I’d like to follow anything new you have to
    post. Would you make a list of every one of all your community pages
    like your twitter feed, Facebook page or linkedin profile?

  • certainly like your web-site however you need to check tthe spelling on quite a few
    of your posts. Several of them are rife with spelling issues and
    I in finding it very troublesome to tell the truth nevertheless
    I’ll definitely come again again.

  • hey there and thank you for your info – I’ve definitely picked up something new from right here.
    I did however expertise several technical isdues using this
    site, since I experienced too reload the website lots of times previous
    to I could get it to loaad correctly. I had been wondering if your web
    host is OK? Not that I’m complaining, but sluggish loading
    instances times will ery frequently affcect your
    placement in google and can damage your quality score if advertising and marketing with
    Adwords. Anyway I am adding this RSS tto my email and could look out for much more of your respective interesting content.
    Make sure you update this again very soon.

  • My brother recommended I might like thi blog. He was totally right.
    This publish truly made my day. You can not consider just
    how much time I had spent for this info! Thank you!

Comments are closed.