Two overflow drains or a drain and a return

How much will that be at 5ft and are you putting in the same size line as the rating says... the rating will be based on a size of pipe... it should tell you.

 

"Much bigger drains than needed" is really your opinion. But I'm going to have to disagree. The bigger the pipe, the quieter it is. Idk about you, but I dont particularly like the sound of water rushing through pipes. I have 3 1.5 inch drains on my 65 gallon, 2 of which normally have water flowing and I cant hear my tank at all. Its super quiet. I know if I had 3 holes available for drains on ANY tank, its getting a bean animal and thats it. The traditional bean setup does use a coast to coast overflow and drains out the back, but it can be used several different ways. It sounds like he has a dual corner overflow, so he can do 2 drains in one corner and the emergency in the other corner.

Remick, what size are the bulkheads in the tank? 1 inch?

 

Looking at the tank now. There are two one inch holes in each corner overflow. There are two overflows in the tank. It's a deep dimension marine land tank and they gave me two overflow kits. There is an inch and a half pipe that comes up for the drain. (shaped like a candy cane) and then there is a 1 inch pipe for the return.

 

I do not see a line size but the pump has a 1 inch output so I will assume that. Flow at 5 ft is 28 gallons a minute.

 

Right... and that's your opinion. Bean published his design and everyone copied it... using a 1.5 inch drain on a 65g tank is complete over kill... you could use 3/4" line for that size tank. All you need is about 300gph and a 3/4" drain will flow 300 gph and you still have two more of those. A 1.5" drain will flow 1500 gph so don't tell me that is needed on every tank.

You do not need the complication of running 3 separate line to put a Bean on every tank to accomplish the same thing... a Herbie does exactly the same thing with out the completely redundant back up drain that is simply not needed. Plenty of folks run a Bean though and yes you can say it is 100% fail safe... but I would just run a Hybrid Bean or Herbie what ever you want to call it on any tank with two drains the same size.

 

To clarify the hole in the tank is closer to an inch and a half this gives enough room for a bulkhead which is 1 inch ID

 

That's cool... a 1" overflow will gravity drain 600 gph... so you have 1200 gph of drain.

Not necessarily... Mag gives it's specs in a 2" line even though it is a 1" outlet. the outlet is to build pressure, but a bigger line will flow more.... but no need to fret.... 1200 gph on a 200 is PLENTY of flow. By the time you plumb your returns with 1" line and several 90s and other restrictions... I doubt the pump will be putting out much more than that... but then you just throttle it and save power.

All you need to do is supply what is in your sump... a skimmer for your tank will probably only process at most 600 gph and a fuge you will need another 200 gph so we are talking 800 gph at most.... make it an even thousand and you are still well within limits.

 

Ya, that's how that works... and if you have to get bulkheads, don't get barbed ones... they really neck down inside to like 3/4". You were probably supplied some in your kit so see what they are.

 

The only thing this pump will do is return flow back to the tank. So what two of kit do I have now? Ie return looks like a candy cane with a hole drilled in the side.. Lol sorry my 120 has a HOB overflow so this is the first I am getting in to this.

 

You are missing the point. The bigger 1.5 inch drains are not there for "flow". They are over sized because the same amount of water flowing through a 1.5 inch pipe is quieter than flowing through a 1 inch pipe. It's about making it quiet. Also there is nothing wrong with a herbie, it is indeed a bean without the emergency drain, but it was designed for pre drilled tanks that only have 2 holes - I.E. make do with what you've got. In this case he has 4 holes to work with so why not make it fail safe? Running 1200 GPH through 2 1 inch drains is going to sound like a tornado, not to mention the microbubbles slamming into his sump. If it were me, I would use all 4 holes for drains, a full siphon, 2 gravity drains splitting the leftover, and an emergency for the fourth. It would be the most quiet option and offer great fail safe features with low bubbles entering the sump.