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lastlight · 02/08/2009, 02:36 PM

The planning behind the system is nearly as impressive as the reef itself! Incredible!

Question: what is that circular black device with flow going through it? Is that some sort of solenoid?

02/08/2009, 02:36 PM	#23
lastlight Premium Member Join Date: May 2005 Location: calgary, alberta Posts: 422	The planning behind the system is nearly as impressive as the reef itself! Incredible! Question: what is that circular black device with flow going through it? Is that some sort of solenoid? __________________ Brett