I have to apologize. It seems that my corporate mail servers are NOT sending me email from Talkingreef. It may be listed as SPAM. I guess I will have to manually check my User CP to ensure that I don't miss messages.
Rob, yeah..it does work. It is pushing a TON of water in my
sump where I'm curing the Marco Rock. Yes, as Gustavo said, there is no "directional control". Which, in some cases, may not be desireable to some. However, I rather like it. I physically turn this pump on and off to change direction of flow every couple days or so. I would imagine, that when used on a wavemaker of sorts, it could be a great way to create "erratic flow" in a system.
Last word of advice. While some may have powerheads in their systems that are close to corals etc. You may not want to do this with this mod. The flow is very strong and could adversly affect your corals (like Neo said in another conversation...literally blow the flesh off of it). You may want to use it to direct flow in those "dead spots" in the tank, or keep it some distance from the actual coral colonies so it is diffused some as it passes through the water column.
As far as I'm concerned, it is doing a stellar job at pushing the water through my very lacy, porous Marco Rock and ensuring that I'm not going to have trapped biological matter in the rock itself. I'm sure it would also be a sweet rig for mixing salt water!
Dave