Here's mine. I built it out of clear pvc. You can see a better picture of it in my thread. http://www.reefsanctuary.com/forums...es-120gal-glass-experiment-35.html#post247738
How does the pump not sieze up immediately once you turn it on with the calcium powder running through it? That's my only concern. I'm buying the parts tomorrow to build one, I have an Eheim 160gph pump.