![]() ![]() The only thing then would be to source monofilament mesh for the panels. I'm hoping to be lucky with this tank as well but there is the option to build a cover with 8 separate square panels if I put supports in the corners of the overflow. None of my other fish have ever made the leap. An open twenty gallon has provided my only loss to this when a newish Pakistani Loach decided the grass was greener on the other side of the glass. On jumpers I have been very lucky so far with my smaller tanks. I didn't plan to build an unusual tank but with my work taking me away from home for up to two months at a time having the extra water capacity to keep parameters more stable and the ease of water changes with a huge sump allows me leeway. I would have one of the infinity edge tanks in a heartbeat but the system for drainage would probably be too difficult to build out here. If anybody can see any dumb mistakes in the design please let me know so that I can make alterations in the design before ordering all of the equipment as a lot of this stuff needs to be imported. :-? The problem is that I have never used this type of overflow set-up before and nobody else has a write-up on the web showing anything like my planned build. Once the water reaches the height of the weir the open channel breather tube will be shut so that it can form a full siphon and the emergency is just barely higher than the weir. The lower level of this means that if there is a power outage the water in the overflow will drop a little more but my sump will be larger in capacity than the tank so no problem there. The full siphon is set a bit lower than the open channel so that it has more chance to start a siphon before the water level goes too far over the top of the toothless weir. I might just have to buy some extra pipe and male adapters and experiment a bit.Īll of the standpipes will use the flat pancake style of strainer to keep out fish and to minimize any vortex action which would introduce air into the siphon and create noise. It would be nice to run it a little higher so that the water flow over the weir into the overflow might be laminar and noiseless but I'm not sure how high I could safely go. ![]() That will be about 1 1/2 inches down from the top of the weir. I plan to set the water level in the overflow so that the open channel runs about half full provided that the flow is quiet at that level. The one on the right is the full siphon with the one on the left acting as the open channel while the one in the middle is the emergency drain in case of blockage. The above image shows the layout of the standpipes. ![]()
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