mateapolis Posted July 19, 2016 Report Share Posted July 19, 2016 Hello all, I am wondering if anyone knows more about the non-profit Spouts for Water's methods for producing clay filters for drinking water. I have a project where the clay needs to be porous enough to let the water through in much the same way, but not quite so fast. Having spoken with my supplier he recommended at the very least to pass 1000 degrees Celsius (I fired to cone 012) as a low bisque to gain a minimum bonding in the clay. This did not quite do the trick, and I'm wondering if anyone has any suggestions on the matter for a cone to fire to. Thanks! Matthew Link to comment Share on other sites More sharing options...
Denice Posted July 19, 2016 Report Share Posted July 19, 2016 What kind of clay are you using? Adding sawdust to your clay will make it more porous but you have to fire it hot enough that it will burn out. The right clay to start with will make the biggest difference. Denice Link to comment Share on other sites More sharing options...
Guest JBaymore Posted July 19, 2016 Report Share Posted July 19, 2016 You might want to contact these folks: http://pottersforpeace.com/ best, ................john Link to comment Share on other sites More sharing options...
Callie Beller Diesel Posted July 20, 2016 Report Share Posted July 20, 2016 Corey Johnston had an organization called Clay for Water, where he was fundraising to help make water filters in South America. He was apprenticing onsite, making the filters with locally found clay. those that passed the porosity test after firing got treated with silver to become water filters, and the ones that failed were sold as planters. He's not doing it at the moment, but he does have a public profile on Facebook, and he's @cjpottery on Instagram. I get the feeling he'd be receptive if you reached out to him. Link to comment Share on other sites More sharing options...
mateapolis Posted July 22, 2016 Author Report Share Posted July 22, 2016 Thanks everyone. I've been using a cone 6 red stoneware fired to cone 012. I was also thinking that maybe a paper-clay would possibly work. I will contact the people that you mentioned and get back to you. Matthew Link to comment Share on other sites More sharing options...
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