Doing some more work on the pedestal. I need to work in a drain line, and the pedestal makes the most sense on where to put it. So...first I drilled a hole in the bottom of the pedestal floor. I'm going to use a Bitspower pass through fitting to run a line out of the bottom of the pedestal floor. You'll see in the picture below the hole looks rough. The largest drill bit I had was 5/8 inch, and the hole needed to be larger than that. So...using a drill bit....alternating with a Dremel grinder...I worked the hole until it was large enough to house the fitting. Looks rough in the raw...but the edge of the Bitspower fitting will cover it up.
Here is the Bitspower pass through fitting...from the inside of the pedestal...looking down at the floor....
And here is what I put together for the bottom outside. Its a 90 degree fitting, combined with a mini-valve, and 1/2 of a D-plug on the end.
In this picture, you can see that the whole bottom assembly can rotate out of the way so that its completely under the pedestal. When I need it, I'll simply rotate it around so it pokes out the back.
Here's a shot of it from the bottom of the case.
And to make it easier to drain, I put together this little contraption. From left to right, its some tubing...a compression fitting....a Q-block with stop fittings...and the other 1/2 of the D-plug.
You can see in the picture below the D-plug end. This end will simply push on the end of the D-plug that was on the bottom of the pedestal drain valve....
Like this. When I need to drain the loop, I'll just push this contraption on....and then open the valve. It's the lowest point of the loop, so I should be able to drain it fairly well. When I'm not draining the loop, I'll simply close the valve and pull off the contraption. Haven't tested it yet though.
On the inside of the pedestal, I put a 60 degree fitting and a compression fitting. I'll end up running tubing to this.
When I previously had tested some of plumbing in the pedestal for leaks, I was doing so with a single D5 pump. Now its time to get the dual D5 setup working, plumbed and tested. I've decided to put the pump in the pedestal. Even though I think the dual pumps with Bitspower top are beautiful....and hate for them to be hidden in the pedestal....it will help with the tubing run I have working in my head. Also, it will keep the inside of the main case VERY clutter free...which I like. I'm going to use 2x of these brackets from (UN) Designs...
...with 2x of these brackets...also from (UN) Designs.
The brackets will go together like this....
The pump will sit on top kind of like this....and the hole contraption will sit on top of the fans on the floor of the pedestal.
Before I could install the pump in the pedestal, I needed to go ahead and sleeve it. First I needed to make all the wires the correct length. This involved shortening the two main power lines, and lengthening the rpm line. Had to get out my solder iron. I terminated all 3 wires in a female fan header that will poke out of the pedestal top...much like the other fan power harnesses I showed previously. From there... a male fan connector will pick it up and run all the way to one of the PA2's.
Here it is sitting on the fans on the pedestal floor. This turned out to be an absolutely ideal mounting place for the dual pump. The Noiseblocker fans that they are sitting on have those rubber corners. No plastic is touching the floor of the pedestal at all. Only the rubber corners. And the pump brackets are attached on top of the rubber feet also. There is not a whole lot of vibration to absorb in the first place...but it takes what is there and eliminates it. The pump is almost silent on highest setting...and dead silent on setting 3. Very happy.
I hooked up a little mini-loop for the pedestal to do more leak testing. Since I had added the drain valve and fittings...and have the dual pumps in their final location...I wanted to test again. Once the main case is attached to the pedestal...it will be a pain to remove it. I want to make sure I have little chance of any leaks down in the ped...before I start a full leak test with all the plumbing in the main case. This went Res>Pumps>480>FlowMeter>480>280>Res. I'll take more pictures soon...but you might be able to pick up the Y-connector in the picture below. Right after the pumps...a Y-connector splits the loop. One side of the Y runs to the drain valve assembly...and the other continues to the first 480. I think the Y-connectors are beautiful.
Success! No leaks on first run! It's not a very restrictive loop at this point...but I went ahead and checked flow also. At full speed, I was getting 2.5 gpm. I also played with controlling the pump speed via the PowerAdjust2. The lowest voltage that it would actually run at was 7 volts. Below that....the pump would stop..and then the Aquaero would kick it up to full speed and then try and dial it back down to the lower voltage...and then do it all over again. At 7 volts...the flow was about 1.6 gpm. And dead quiet. I know it will go down some when I get everything else attached. But then again...I have two more pumps to add also. I think I'll be able to operate the pumps at a fairly low speed and still get good flow.
Geez...that last paragraph sounds like a Flowmax commercial.
While the pumps were hooked up to the PA2, I did notice that the PA2 temperature was MUCH higher than it had ever gotten with my fans. Makes sense....more amps. The scenario that should produce the hottest temps for the PA2 are when I undervolt the pumps to 7 volts, and then also undervolt the fans that are directly above the PA2 so that they spin slowly. Under this scenario...the PA2 temps reached about 75c. That is still acceptable. Well below any thermal throttling point. When I increased the speed of the fans that are right above the PA2's...the PA2 temps came down to about 65c. When I sped the pumps back up to full speed...the PA2 temps dropped even further...going down to about 55c. This pleases me. I've always been a little worried about PA2 temps and Aquaero temps...just because of some of the threads I've read in different forums. Looks like I will be fine in this area.
More to come!