The skimmer update
My last tank before the upgrade ran for just short of three years. That system was 140ish gallons with a 75G sump. The majority of the first couple years I ran a Bubble King Double Cone 180 on that system. Even though officially rated for only 132G, it probably handled my old system fine. As we all know, BK significantly underrates their skimmer capacity. But as I went through the uglies in the early part of that setup you think of things to change (as one does) and I noticed that the RD3 50W was being ran at much under half its rated power on the 180 Double Cone. Which then made me wonder if that pump could be run on a bigger body to good effect.
I had bought a Vertex Omega 200i skimmer when my last tank was built to run on the Tampa Bay live rock QT tank. That skimmer body is decently larger than the 180 Double Cone but shaped almost the same. Here is the Vertex Omega body.
So the pump is internal on the 200i but I needed a way to mate the external RD3 pump to the new body. A couple trips to the hardware store and some PVC glue and machining gave me this:
Not the best picture, but it's the best closeup that I have. Basically, a threaded 1.5" male adapter to a barbed fitting fits into the Vertex Omega manufacturer's internal pump intake nicely and let's you get to the silicone nozzle on the RD3 pump from the Bubble King.
The other problem to solve is how to convert the internal bubble plate on the Vertex skimmer to the external pump format on the Bubble King.
Here is the bubble plate on the Vertex, where the input to the chamber is on the bottom:
And here is the bubble plate on the Bubble King - which I needed to replicate for the Vertex body. It's pretty similar in design but has an additional open cylinder on top of the plate and the input to the chamber is from the side.
I started by grabbing a scrap square of acrylic and drilling a hole in the middle of it. The old bubble plate diameter was measured and then the scrap acrylic square was loosely screwed into the table router face at this diameter. The bubble plate also needed a channel to hold the open cylinder; a few test passes on the scrap piece gave me this:
The first turn was too small for the channel, but the second was right on the money (which is why the channel is too wide in the attached pic, but it was only scrap anyway). With these tries under my belt, I turned out this piece:
On which I just traced the old bubble plate hole pattern layout. I hand drilled pilot holes but had to get use a special tool to get the chamfered edges of the holes done.
After some fun with my father in law's drill press, I ended up with this - which I was pretty happy with. The chamfered edges were done by setting the stop of the press just as the oversized bit made contact with the acrylic plate. Not too bad at all.
Both bubble plates included a support post used to hold in with a screw. I had some scrap acrylic rod on hand, so some quick time with the saw and tap gave me this:
Weldon #4 to attach the rod to the base plate acrylic (which was then screwed to the PVC bottom).
The last piece to solve for was the actual acrylic tube in the bubble plate. I was able to find some 6" acrylic cylinder on eBay for maybe $20. It just needed cut to length and hole drilled in the side of the lower piece for the nozzle to fit into. One piece was welded to the bubble plate, the other cylinder is free as the screw holds it in place with tension.
And here it all is assembled:
This frankenstein skimmer of the Vertex Omega 200i and the RD3 pump has been in use for the last two years and I have LOVED it. The RD3 pump had plenty of extra horsepower to turn up and is STILL only at a little over half. Could the Double Cone 180 have ran my last system (and probably this one)? Yeah, I think so. But I really did enjoy the DIY aspect of the project and getting it all to work. One the recurring themes in my thread is going to be fixing old equipment or building something up yourself. Hope you folks enjoyed this update.
Astute readers may have noticed I didn't actually answer what was in the Royal-Exclusiv box.....