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Ceramic Silver Pot (CSP) filter

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{{Language-box|english_link= Ceramic Silver Pot (CSP) filter| french_link= Coming soon | spanish_link= Coming soon | hindi_link= Coming soon | malayalam_link= Coming soon | tamil_link= Coming soon | swahili_link=coming soon | korean_link= Coming soon | chinese_link=陶瓷银浸锅（CSP）过滤器 | indonesian_link= Coming soon | japanese_link= Coming soon }} [[Image:Ceramic_filter_icon.png|right|80px]][[Image:CSP filter.jpg|thumb|right|250px200px|Family using a CSP filter (Ceramic Silver impregnated Pot model)filter in Zapatera, Nicaragua. <br>Photo: NWP.]]

A new alternative to conventional ceramic candle filters is the CSP filter.This model has a pot-shaped ceramic filtering element that is treated with colloidal silver. It has a bigger capacity and is easier to produce locally than candle filters. Also leakages are easier to detect than in candle filters so there is less risk in use.

Field studies have shown that investment in a filter is “paid back”within 3 to 6 months because of savings on expenses for medicines, fuel wood and labour. In Nicaragua, Guatemala and Cambodia the production of this filter is a commercial activity and production is starting up in six other countries.

 

“A filter for family use that provides clean and bacteria-free water at a cost of US$ 3-5 per family per year” - Ron Rivera of the NGO Potters for Peace.

 

===Construction, operations and maintenance===

Capacity: 10-20 litres/day.

 

===Costs===

Cost complete filter:

(off-factory): US$ 8 in Cambodia, US$ 10-15 in Nicaragua.<br>

 

Cost of introduction: US$ 15,000 - 30,000 for project incl. training, machinery and a first production of 500 filters.

US$ 50,000 - 100,000 for project incl. production shop, training, first promotion, and 5,000 filters.

 

===Field experiences===

 

150,000 in Central America, Asia and Africa.

 

===Acknowledgements===

* [http://www.samsamwater.com/library/Smart_Water_Solutions_-_EN.pdf SmartWater Solutions: Examples of innovative, low-cost technologies for wells, pumps, storage, irrigation and water treatment.] or ([http://docs.watsan.net/Downloaded_Files/PDF/NWP-2006-Smartwater.pdf alternative link]). Netherlands Water Partnership, 2006.

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