The Cink uses a circulating water system that filters out solid clay. The filters can even be cleaned in The Cink itself. The system captures particles down to 1 micron in size. Cleanup and maintenance is easy. The Cink is a great solution for potters who have studio space without running water or a drain. All that is needed to get started is a typical 120V household outlet and an initial supply of water. Pumps 2.2 gallons per minute.