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Old 07/06/2013, 09:31 AM   #176
karimwassef
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And here is the actuation and the signals from the Apex. The V3 and V4 create a 2 min repeat sequence (one turns the actuator to open and the other closes again). The V1 ad V2 use a float switch to activate the other valve's sequence.

 photo relay2_zps501814bf.jpg

 photo relay3_zpsc43b229a.jpg

This part is still under design/test.

Here is the thread on the Neptune forum for the programming...
http://forum.neptunesystems.com/show...p-needed/page2


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Old 07/06/2013, 09:33 AM   #177
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And the vids...






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Old 07/06/2013, 09:57 AM   #178
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In terms of flow and leakage:

The leakage takes about 2.5 mins to fill a 5 gallon bucket = 120 gph leakage
The open flow at about 3 feet is 2.5 seconds to fill a 5 gallon bucket = 7200gph surge

Since the final assembly is about 4-5 feet up, I expect to be over 8000gph in actual operation.

You can see the leakage in the first video. It's not small, but it is manageable since the pump filling the surge will be running at 4000 gph (maybe 2000-3000 gph net since it has other flows to feed too: chiller and skimmer).


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Old 07/06/2013, 11:36 AM   #179
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The circuit doesn't work with only 2 DC sources. Moving on to 4 DC sources. At $5 a piece, it's not that big of a deal given that I'm driving two actuators.

 photo relay3_zps215af979.jpg

I'm sure someone will figure out a way of doing it with fewer adapters, but may have to use twice the relays...


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Old 07/07/2013, 12:23 AM   #180
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Found out that the relay board needs the inputs to be pulled low (to ground) to activate the relay. The Apex generates a 0-10V signal, so it's not working. I'm considering modifying the relay board, but haven't done this before. Anyone have any experience with it?

 photo relay4_zps91f02ccf.jpg


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Old 07/07/2013, 01:21 AM   #181
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going with the SSR and one supply instead.

 photo relay5_zps1d74c4ff.jpg


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Old 07/07/2013, 04:06 PM   #182
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Any feedback on the surge videos?


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Old 07/08/2013, 07:27 AM   #183
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In the 2nd vid everything seems a bit more "calm". Is that just because you had some water already in the container which masked the leak amount? IT just seems like a lot of leak from the video.


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Old 07/08/2013, 09:44 AM   #184
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wow, nice computer graphics on the first page, looks like a nice setup


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Old 07/08/2013, 04:44 PM   #185
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The lower container being full masks the leakage of about 120gph. With a replenishment of 2500gph, that's 5% which is insignificant overall.

The surge is bubble free and noise free, and very low cost - those were the original the requirement and this solution meets it at 6000gph surge (so far).


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Old 07/09/2013, 07:55 AM   #186
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I keep forgetting the massive VOLUME we're working with. 120gph isn't much at all in comparison to your system.

That's an impressive set-up in regards to your wave/surge system. Do you have any idea of total cost of all components (not the Apex etc).


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Old 07/09/2013, 09:55 AM   #187
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The plumbing is $30 per surge (the 2" unions and bulkhead were expensive). The actuator is $50 per surge. The relay board is $30 covering both. The total is likely ~$200 for both surges.

This excludes the Apex and the surge container. I used a 100gallon but it could be any size down to 30 gallons or so.

I'll post a detailed costed bill of material once it's all up.


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Old 07/31/2013, 09:57 AM   #188
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Just proves how little I know about this hobby. Amazing ideas at work here. subscribed!


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Old 08/06/2013, 11:03 PM   #189
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quick update - got the two surges running. The flow is making me reconsider the 2" sand on the bottom.

pics and videos coming soon.


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Old 08/26/2013, 11:42 PM   #190
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Really impressed with the detail on this build!


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Old 11/20/2013, 05:06 PM   #191
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Any update on this project?


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Old 01/02/2014, 10:13 AM   #192
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hi everyone. I've been away for a few months but the project has been going well.

the surge device has been working constantly since september without interruption. I'll post the details soon.

the flow alternator/diverter is working too. More on that too.

the 10 ft dual injected protein skimmer is finally done.

the thorite concrete live rock is in progress.


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Old 05/05/2014, 08:34 PM   #193
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Well done Moving 8000gph with little sound and dry will be great to see for us that enjoy design/builds.
Video would be killer when you can!


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300 gallon TRUVU AquaSystem "Mod" w/ 150 gallon control center.......
Build Thread: http://www.reefcentral.com/forums/showthread.php?t=2276765&highlight=300+dt+
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Old 05/05/2014, 09:07 PM   #194
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ok. here's the tank front view. you can see the cyclical flow first:




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Old 05/05/2014, 10:04 PM   #195
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here's one surge (left top outlet)... notice the water level in the overflow.



and two surges at once (top left and middle mid-tank outlets). Notice the DT water level rise.



another dual surge




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Old 05/05/2014, 10:08 PM   #196
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here's the build from the back:



and here's a surge view from behind:




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Old 05/05/2014, 10:12 PM   #197
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... some vids not loading. Trying again



Last edited by karimwassef; 05/05/2014 at 10:25 PM.
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Old 05/05/2014, 10:13 PM   #198
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here's the cyclical diverter




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Old 05/05/2014, 11:02 PM   #199
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Dual surge - rear view



Here's the circuit working




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Old 05/05/2014, 11:32 PM   #200
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The pipe from the top of the surge container to the tank is not part of the normal surge operation. It's the emergency passive overflow protection. In case the active systems fail for any reason, the surge container will never flow over. It will run to the DT through the air filled pipe causing a lot of bubbles which acts as a passive visual alarm.

I can't stress how critical this simple pipe is for safety and sanity.


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