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Comments (44)
- zahlmanIt took me a while to realize that this is not from "lowtechmagazine".
- cassianolealCeramic filters are very common in Brazil, used in clay recipients which also keep the water cool even in summer without spending energy.https://g1.globo.com/saude/noticia/2026/03/14/filtro-de-barr...
- fastballThere is a company[1] in Indonesia that actually makes very nice versions of this tech.[1] https://www.terrawaterindonesia.com/
- ks2048I'm in Antigua, Guatemala where the embedded video is from. As the video says, it may be "low tech", but it's not like something you can do very easily for yourself. Ecofiltro is everywhere here. But, it is more expensive then I would have thought - maybe $30 for a clay pot and $50 for it's container.
- AnimatsNice. It's like a mini version of a slow sand filter.[1][1] https://en.wikipedia.org/wiki/Slow_sand_filter
- geokonI wonder if you could achieve the same effect more easily/consistently using cement. It's basically how aquifers "filter" water. Limestone is naturally permeable unlike fired clay.. were you need to control the porosity. I'd imagine cement mixtures are much easier to handle and you can make arbitrary shapes (higher surface area and higher hydraulic pressure to increase the flow rate)
- SwtCyberThere is something very satisfying about sawdust being a feature rather than an impurity
- anonundefined
- ChrisMarshallNYWhen I was a kid, we'd go camping, and we had these water filters that you would pump water through, and they would filter it.It was ceramic, and I think it was the same idea, but we used a pump to force the water through (like a bicycle pump).
- notjesGot hackernewsd
- rainworld
- bilsbie[flagged]