return pump in display as overflow? (equal gph as sump return) would it work?

elliottgraniteo

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I've been wondering if it would be possible instead of an overflow box could you place a return pump in the display tank with equal GPH as the return pump in the sump? I don't want to drill the tank and don't want to spend big money on an external overflow box.
 

fcmatt

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you must see the flaw in the plan right? When one pump stops working one day...

There is a reason canister filters are sealed tight and have a single pump.
 

KStatefan

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I've been wondering if it would be possible instead of an overflow box could you place a return pump in the display tank with equal GPH as the return pump in the sump? I don't want to drill the tank and don't want to spend big money on an external overflow box.

Will never get the to match GPH.
 

andrewkw

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Besides all of the above you will almost certainly spend more on 2 pumps then you would either for a glass drill bit and bulkheads assuming the tank is not tempered or a hob overflow. Unless of course you are planning on really cheap pumps - not that expensive ones would do the job in question regardless.

Keep in mind unless it's a huge custom tank, the actual glass box is not going to be one of the most expensive parts of a reef aquarium.
 
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elliottgraniteo

elliottgraniteo

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Besides all of the above you will almost certainly spend more on 2 pumps then you would either for a glass drill bit and bulkheads assuming the tank is not tempered or a hob overflow. Unless of course you are planning on really cheap pumps - not that expensive ones would do the job in question regardless.

Keep in mind unless it's a huge custom tank, the actual glass box is not going to be one of the most expensive parts of a reef aquarium.
Yeah tank in question is only a 40B. Wasn't planning on expensive pumps in the first place if I did ever attempt it. Just wanted to see what every one else thought since a quick google search didn't really bring anything up about it.
 

Big E

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You can probably get a used old school U-tube overflow box locally for about $20-30.
Ask on local forums
I'd also check the used equipment sales sections
Put in a request also in the want to buy section

This is a good price for a new one--
 
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mattzang

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Lasse

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Sooner or later - water on the floor with that solution - if you do not spent $xxxx on level indicators, flow meters and other safety devices

Sincerely Lasse
 
Top Shelf Aquatics

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Yeah tank in question is only a 40B. Wasn't planning on expensive pumps in the first place if I did ever attempt it. Just wanted to see what every one else thought since a quick google search didn't really bring anything up about it.
Done it...same situation way back in the day, didn't want to drill, didn't want to spend money. I made a overflow box(old aquaclear HOB), put a pump in it with a float switch. I valved it somewhere, could never get the flow just right. I was soon buying a CPR overflow box.

There are some things that work well as DIY....this is not one of them....drill the tank if it is dry right now.
 

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