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					Originally Posted by  titus
					 
				 
				Hello 
 
If that's a filter of some sort on the main drain pipe (right of skimmer) into the sump that's neat. 
 
Titus 
			
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 Yes sir. It's a 4" filter sock. They are nice to have. But a pain to clean. Need to have 2 handy because it takes two days to properly and safely clean and dry each one and it takes two to three days to get dirty