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Old 05-26-2011, 05:13 PM   #11
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How does drilling the hole help? I just don't see how it would stop a siphon back down to the sump tank, if the hole is already under water...
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Old 05-26-2011, 06:02 PM   #12
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When the pump stops the water will back flow into the sump. With a small hole just above the water line air can enter to break the siphon. the hole is only under water when the pump is running. When it stops the water level in the aquarium will drop exposing the hole.
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Old 05-26-2011, 06:15 PM   #13
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I guess I just don't understand fully where the hole is drilled. I just can't imagine where to drill the hole. Everywhere I can think of just doesn't work out in my head. I'll go look it up some more...

edit: Oh, I found a great pic explaining this. In my head I had the return line going through a hole drilled in the tank, not up and over the back glass. How would you set something up if it was to go through the back glass/acrylic?
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Old 05-26-2011, 07:36 PM   #14
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Thanks I'll read up on the hole info.

I just emailed F&S and they said i'd have to use pvc pipe and then use an adapter to go to vinyl tubing - for the overflow box to the sump.

That would cost more money (since you can't buy pvc pipe in less than 5' sections, and i'd have to buy more adapters and hose clamps).

So I'll just be running PVC from overflow to sump, then vinyl tubing from sump to return lines.
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Old 05-26-2011, 08:20 PM   #15
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Thanks I'll read up on the hole info.

I just emailed F&S and they said i'd have to use pvc pipe and then use an adapter to go to vinyl tubing - for the overflow box to the sump.

That would cost more money (since you can't buy pvc pipe in less than 5' sections, and i'd have to buy more adapters and hose clamps).

So I'll just be running PVC from overflow to sump, then vinyl tubing from sump to return lines.
Did you happen to check the plumbing section on F&S website?
MPT x Insert Adapters
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Old 05-26-2011, 08:23 PM   #16
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Sounds good! Post pics when you're done =D
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Old 05-26-2011, 08:45 PM   #17
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Sounds good! Post pics when you're done =D
Haven't even ordered parts yet LOL. I'm getting it together in my head first. I'm almost there!

Then I'm just going to order the overflow, pump, and plumbing. The sump is a ways off because it's pretty pricey (and I give up on a DIY sump).

I am going to put together the plumbing and stuff as soon as I get it so I will post pictures of that for sure.
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Old 05-26-2011, 08:50 PM   #18
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Sounds like a plan! It's always good to think it all through first =) I'm just always wanting pics... When it's all set, post some up! I'll be waiting =)
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