180 Gallon In Wall Tank

That cast! Whoa!

Adam

knowen87 wrote: Krazie - I took it down lower so that it would not show through the glass on the back of the tank. I am still not sure what I will do for a background. I didn't want to put the sump a lot lower though. I built the sump stand to allow for an additional 40g breeder to fit below. As far as self starting issues, I guess that I am not sure what you are talking about. When the power goes out the overflow box drains and water will just sit in in the drain until the return starts back up. There is no siphoning and it starts up just fine. My main concern is sediment buildup in the line. I will see how it goes.  One nice thing is that I do get a lot of flow from the return. The total head height is only like 1.5ft-2ft so the flow rate substantially more than when the sump was under the tank.

Let me use your picture to try and explain what I meant.

So in order for the bean animal to work correctly (and silently) it has to be able to run a restricted airless siphon on the herbie, upto a full flow on the Durso and not draw air into the line from the emergency. When the return shuts off the siphon breaks on both of the siphon drains and fills the pipe with air down to the level of the water in the sump and then holds water in the pipe drain pipe at that level. See my edit of your picture below. (Red is water level with the return off, yellow is air in the pipe and blue is water left in the pipe).



So then when the the return starts back up the drain has the potential to become whats called air locked due to the air in the lines being trapped between the water in the pipe and the water entering the drains. That air does not want to got down the pipe so this standing water in the pipe creates resistance to the siphons starting by them self until the drain either burps the air back up the drains or is able to break the air up into smaller bits and force it down the pipe and out the sump end. Most drain pipes in this drain setup will completely drain of water during the shutdown to prevent this airlock condition from happening.

It sounds like somehow you have not experienced an airlock yet but I just saw that there was the potential for it to happen in this setup.

A second question I have after thinking this through is in your setup where all three drains go into a single manifold do you experience any noise from air being sucked from your emergency drain into the manifold and then creating bubbles or gurgling at the sump? Because this drain setup is supposed to work based off of siphon it would seam that your emergency drain is a "hole in the side of the straw" and would be introducing air into what is supposed to be a "sealed" siphon.

Sorry about all the questions. Just stuff that popped into my head as I looked at your pictures and read your write up. Thanks for answering and sorry to hear about your daughters leg. I hope she heals up well. Krazie




Edited by Krazie4Acans - April 25 2017 at 7:09am

Krazie - I took it down lower so that it would not show through the glass on the back of the tank. I am still not sure what I will do for a background. I didn't want to put the sump a lot lower though. I built the sump stand to allow for an additional 40g breeder to fit below.

Edited by knowen87 - April 24 2017 at 1:48pm

Is there a reason you didn't have your drain manifold run at the same height as the top of your sump instead of dropping below it and then going back up and over the top of the sump?

I'm just curious about it and wondering if you have any issues with it self starting after a power outage?

Way cool thread

Lol, ok I thought I was reading it wrong. That's great

So you have 1 to 2 tds going into your fish tank? How old are the filters? I've always had 0 coming out and when it starts reading1 or 2 then I look into getting new filters...maybe just me being paranoid, lol
Looking good though, can't wait to see it with fish!

Edited by knowen87 - August 10 2017 at 3:30pm

I added the braces last weekend under the tank. It was pretty minor stuff. It is perfect because the tank sits right above a room full of storage racks so it was easy to do. I did add a beam to support one joists because it will be holding one leg of the stand, the sump and the 70g water storage tank. I checked it in the software at work and it said it would be at 85% capacity without the beam so I just added a (2)2x6 beam for good measure.20170406_194103_zpsd8ssjpmh by Nate Owen, on Flickr


Edited by knowen87 - August 10 2017 at 3:26pm

I got the tank in last weekend. I had to drill 3 holes in the back of it which made me very nervous ( to the point that I did not sleep well the night before). I also got the species/qt stand painted and the sink in and hooked up to the plumbing. I also got the plumbing started for the overflow. The drains are all 1 1/4" they will go down to the stand level and connect into a 1 1/2" manifold. It is a process but it is coming along nicely

Edited by knowen87 - August 10 2017 at 3:24pm