NEW plumbing method for an ULTRA QUIET REEF TANK!!!! LONG !!!!

Deep enough that a vortex does not form and sucks air.
About 1 inch is usually good.
More the better IMHO. It will be easier to keep tuned.
 
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I have been searching this thread looking at different ways of plumbing a 120g aga dual overflow. I haven't seen this way mentioned before. I am using an eheim 1262 with about 900 gph. It will be throttled back to about 600 because of reactor feed. I was thinking about putting a main drain in both overflows so that water is always flowing in both overflows and will not create stagnant water. Please give me feedback on this. Thanks!

drain.jpg
 
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That's what I did on mine, except I made the mistake of putting a valve on each drain which created all sorts of problems.
Had to adjust one valve or the other every day.
Tying them together, as you are planning, should work just fine (it was mentioned somewhere on this thread)!
 
has anyone here ever played with an all-glass type of dual overflow with their megaflow system in the overflows ,2 large holes in the bottom of each overflow box seams pretty good , i can completely plug up one of the drains and doesn't even come close to overflowing, but thats with the drains wide open as they are 1-1/4 " and the returns are 3/4", now i what to do a Herbie and put gate valves on the drains , throttle them back to stop the air getting in the sump , i've done this kinda by putting my hands over the drains and it works , but i'm not sure why it's stopping the air from getting in there, Why?? and what-a you guys think of this all-glass setup , seems almost bullet proof
 
Yes, watch this video. hth
Herbie

Nice Bradley,

I think I just found a way to get away from drilling my tank and would solve the problem of maybe shattering the glass. I have an under rated CPR overflow box and I hate that. Now I need to figure out what size overflow pipe and return I should use.

Right now I have a single 1" overflow and a single 3/4" return. The pump will pump more water back than the overflow supplies. Maybe two 1" overflow lines would solve that problem. The tank is around 100 gallons and the sump I made from a 20 gallon long tank. It may hold 15 gallons.

Thanks for posting that video.
 
Hey nbsdsailor , is that an All-glass tank you have ? Aka "aga" cause that's what I have , if so ,have you considered useing their megaflow setup ? I've got 2 800 gph pumps in the return ,3/4 " and 2 drains from the 1-1/4 bulkhead necked down to 1" pvc ,and I can completely plug one up and no problem on flow , but the problem is air in the sump noise , so if I do a herbie , and throttle back the drains ,(for sound) I'm not sure I will have the same luck with pluging one drain up, simulating a clog , thats my question??
 
1600 got might be to much for a 1" drain. Not sure though. If you cut back to just 1 800gph pump, the 1" will be plenty and with my plan the backup will be 1" also so you would be fine. Maybe someone knows how much a 1" pipe can handle?

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I'll probably get hammered for being too lazy but I just can't get through the entire thread, so here goes.
Do I tee both of my 1" returns together with one gate valve? I have a 6' tank with 2 overflows. One in each corner. My sump will be in the stand below on the far left to maximize space under the tank. I was about to finish up my plumbing and I stumbled on another thread while doing research that says to do this. I thought each overflow box had it's own full siphon with gate valve and emergency drain.
 
I'll probably get hammered for being too lazy but I just can't get through the entire thread, so here goes.
Do I tee both of my 1" returns together with one gate valve? I have a 6' tank with 2 overflows. One in each corner. My sump will be in the stand below on the far left to maximize space under the tank. I was about to finish up my plumbing and I stumbled on another thread while doing research that says to do this. I thought each overflow box had it's own full siphon with gate valve and emergency drain.

If you T the two drains together you run the risk of having balancing issues, where one drain flows more than the other. This could mean that the internal water level in each overflow is different. Theoretically you can run it without any balancing issues, but reality is usually different.

With 4 holes (2x in each overflow), you can run the traditional Herbie and have a spare (1 drain, 1 emerg drain, 1 return, spare) or you can run 1 drain and 1 emerg drain in each overflow, and run your returns up the back and over the side. I'd probably do the latter.
 
if you tie the two drains together with a cross over pipe before the valves they will balance out , works in a car exhaust, trying it in my build in a couple of days, this has been kinda cool, just trying all kinds of things with fresh water til i like it, plus i'm in no hurry , that helps , think i,m going to start a diy led next week , following some good threads
 
Hey all,
I have a 45gallon rimless with a 3/4inch hole and a 1/5inch hold drilled in the overflow. Will this method work for me as well? If so which drain would i want to make my perminent siphon, the smaller of the 2?

Thanks for your help in advance.
 
1/5 inch? I would assume you meant 1/2". The 3/4" would be the one going to the sump and the 1/2" would be the return line. Do you have a photo you can post?
 
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