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					Originally Posted by  jslaney
					 
				 
				Zylum, thanks for posting this question. 
 
Dont mean to hijack but a few people have complained about noise with the euro reefs.  
 
I was going get one of the smaller in sump euros but noise is a big concern of mine. Any other option for tried and true and quiet skimmers. 
 
Thanks, 
 
Jon 
			
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 The majority of noise from these skimmers comes from the air line, you just need to make a silencer. The best way to do this is install a PVC cap on the output riser pipe, drill a small hole (~3/16) in the top of the cap, then drill a 3/8" hole in the side of the pipe right below the new cap and run the air line through the hole and into the riser pipe.