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			 You can clean these relatively easily every 3-4 days just rinsing with hot water, and once a month using bleach. They are made out of polypropylene so they should last for a while. Getting them is a tough part. I got mine, rated at 100microns, from US wholesaler. I will be getting also 50micron ones pretty soon. You have to order at least 25. PM if you are interested I can sell you one or two.   
		
	
		
		
		
		
		
	
		
		
	
	
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