Back on the overflow jam

[YHSublime]

So I was going to do an eShopps overflow, the Eclipse. But I've been reading about them, and the water level is 2" below. Tank is already shallow enough, I don't need to take my waterline 2" down. Alternatively, I could glue some acrylic to the weirs, but was hoping for an AIO solution. 

[Origami]

So I was going to do an eShopps overflow, the Eclipse. But I've been reading about them, and the water level is 2" below. Tank is already shallow enough, I don't need to take my waterline 2" down. Alternatively, I could glue some acrylic to the weirs, but was hoping for an AIO solution. 

Never tried this before, but how about taking a couple of black panhead nylon screws and wing nuts (or possibly even a couple of automotive plastic body rivets which have an even lower profile) and bolt a piece of acrylic behind the weir rather than glue it? You may be able to use the existing weir slots to push the body of the screw through requiring that you only have to drill through the piece of hidden acrylic. That approach might keep the water level adjustable at least.

[YHSublime]

Never tried this before, but how about taking a couple of black panhead nylon screws and wing nuts (or possibly even a couple of automotive plastic body rivets which have an even lower profile) and bolt a piece of acrylic behind the weir rather than glue it? You may be able to use the existing weir slots to push the body of the screw through requiring that you only have to drill through the piece of hidden acrylic. That approach might keep the water level adjustable at least.

 

That's not a bad idea. 

 

Am I being crazy for wanting to at least run a herbie? Last thing I need is 20+ gallons of water on my floor. 

 

I was thinking alternatively I could go with something like this, at a lower profile, and call it a day: http://www.glass-holes.com/700-In-aNd-Out-Complete-System-innout7.htm

[Origami]

Are you running it to be quiet or to have the redundant drain? If exclusively the latter, then no, you're not being paranoid or crazy. Designing for failure (that is, to be fault tolerant) is the prudent to do. However, you can achieve the same result with careful design. That is, a Herbie or any configuration with a redundant drain is not a necessity to keep dry floors. However if you're running it so that you can run one drain in full siphon mode and another under a trickle in order to run a quiet drain with overflow, then you'll want at least that second drain in there.

 

The magnitude of a spill will be dependent upon two factors: 

 

1) The excess capacity of the return pump section of your sump when compared the "headroom" (unoccupied volume) in your display, and

2) The excess of the water in your tank that would flow down to your sump if the return pump stopped operating.

 

Clogging of your overflow is the primary failure mode in #1 while a power outage (or return pump failure) is the primary failure mode for #2. A redundant drain can also mitigate this risk (though it's not the only way).

 

In #1, the sump basically goes dry in the section with the return pump because baffling holds the water back in the other sections. If your tank has enough excess capacity to hold this extra water, then your floor stays dry. If not, then the excess water spills (possibly shorting out equipment along the way).

 

#2 can be tested by pulling the plug on your return pump and watching that your sump doesn't overflow.

 

Designing your system to be tolerant these two different failures will keep your floor dry, too.

 

So, you can use a single output overflow (like the one from Glass Holes) safely if you make it part of a fault tolerant design. If you want it to be near-silent, you'll have a tougher time with that and may employ something like a Stockman or Durso standpipe to quiet things down some.

[WilRams]

If willing to do a single drain then you could look at the Xaqua INOUT overflow.

[smh254]

I think the eclipse S would be right down my alley, I should have considered this earlier. Looks like the peninsula nano is about to begin.

Sorry I missed where you asked me for a few pictures. Hope it's not too late and this will help.

 

 

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[YHSublime]

Sorry I missed where you asked me for a few pictures. Hope it's not too late and this will help.

 

 

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Thanks, this arrived in the mail this AM

 

 

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