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			#1  
			
			
			
			
			
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|  Plumbing noise problem on my overflow box it's been having this splash noise it's really really loud. not sure but the splash is crazy.  
				__________________ BIOCUBE 29 | 
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			#2  
			
			
			
			
			
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|   BUMMP help. 
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			#3  
			
			
			
			
			
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|   Quote: 
 Might use an external Durso  
				__________________ Robb | 
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			#4  
			
			
			
			
			
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|   Quote: 
 ohh no.. I have to take this apart?? could I just drill the top? 
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			#5  
			
			
			
			
			
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|   I'm not an expert by any means, but I would think just drilling the top of the elbow would cause a leak. 
				__________________ Robb | 
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			#6  
			
			
			
			
			
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|   You could do a type of duriso standpipe with that set-up.  The part with the air hole would have to be higher than the tank to prevent water from coming out of it | 
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			#7  
			
			
			
			
			
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|   Your going to want to replace that 90 with a T. Put a cap in the top of the T with an air hole drilled. I you want to get fancy you can run a piece of air line with a valve out of the air hole. What your going to have to make is an external durso standpipe. If you google it you should be able to find diagrams. |