Clean It Up
		UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: Pure Shine on August 10, 2013, 11:36:58 am
		
			
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				Hi guys if i have a 650 littre water tank and fill it twice a week with pre purified water how often should i change my resin beads ??
			
 
			
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				How long is a piece of string. 
You need a TDS meter, change when you get a reading.
			 
			
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				this is a resin calculator at Gardiners. Very handy like most of their stuff.....  ;)
http://www.gardinerpolesystems.co.uk/Resin%20Calculator.htm
			 
			
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				Thank u for link to calculator much appreciated great idea . beads are in need of a more frequent change i guess