cavetating closed-loop, waveline

kevensquint · 08/13/2013, 03:49 PM

I've been battling a burst of micro bubbles and chattering closed loop for a month. The inlet pipe is 1.5" outlet is 2". So the restriction is probably as simple as the inlet diameter vs the outlet. Would splitting the outlet in two cause restriction? Or do I need to reduce ut to 1.5" as the inlet side ? Thanks

zachfishman · 08/13/2013, 04:38 PM

Any extra plumbing will add output resistance. How are you protecting the inlets in your DT? Maybe the strainer caps are too restrictive?

kevensquint · 08/13/2013, 07:12 PM

Yes they were actually. But now they are very high flow. I split the output and Reduced it to the same size as the input. Its better, But, I can only go up to the speed before max. At max..same deal as before. I did notice however, the pipe length on the inlet side goes down 5" deeper than the outlet. I suppose that is causing the pump to work harder sucking the water in, correct?

sirreal63 · 08/13/2013, 08:14 PM

Got a pic of it Kevin? That may very well be the issue, but it may not be either.

08/13/2013, 03:49 PM	#1
kevensquint Registered Member Join Date: Jan 2005 Location: new york Posts: 2,277	cavetating closed-loop, waveline I've been battling a burst of micro bubbles and chattering closed loop for a month. The inlet pipe is 1.5" outlet is 2". So the restriction is probably as simple as the inlet diameter vs the outlet. Would splitting the outlet in two cause restriction? Or do I need to reduce ut to 1.5" as the inlet side ? Thanks

08/13/2013, 04:38 PM	#2
zachfishman Registered Member Join Date: Sep 2003 Location: St Petersburg, FL Posts: 3,577	Any extra plumbing will add output resistance. How are you protecting the inlets in your DT? Maybe the strainer caps are too restrictive? __________________ Patience is a reefer's best tool. Secret Xenia lover. M.S. Marine Biology Staff - Marine Discovery Center, St. Petersburg FL Tampa Bay Reef Club BOD 2018 Current Tank Info: 34g modded Solana

08/13/2013, 08:14 PM	#4
sirreal63 Go Spurs Go!!! Join Date: Dec 2004 Location: Meadowlakes Texas Posts: 13,357	Got a pic of it Kevin? That may very well be the issue, but it may not be either. __________________ Jack No One has ever been seriously injured by using the search function. Alcohol, Tobacco and Firearms should be a convenience store, not a government agency. Current Tank Info: Reefing the Pentagon.

08/13/2013, 07:12 PM	#3
kevensquint Registered Member Join Date: Jan 2005 Location: new york Posts: 2,277	Yes they were actually. But now they are very high flow. I split the output and Reduced it to the same size as the input. Its better, But, I can only go up to the speed before max. At max..same deal as before. I did notice however, the pipe length on the inlet side goes down 5" deeper than the outlet. I suppose that is causing the pump to work harder sucking the water in, correct?