Building a sump - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 05-01-2008, 03:55 PM Thread Starter
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Building a sump

Hey. I hav a 75gal tank and plan on using a spare 18gal for a sump to hide my heater, sponge filter(for bacteria), etc. I also have a canister filter so the sump isnt the only filter. I plan on using a 320gph powerhead for the return and I want to know if this is enough? The sump will be 3feet below the 75gal and I will be using 2 90degree elbows just to get the return over the rim of the main tank. Also will 1inch pvc be enough siphoning if i use this overflow: https://www.plantedtank.net/forums/di...low-ideas.html I have also read about people getting a tidal efect affter power is restored. Has this happend to you?
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post #2 of 8 (permalink) Old 05-01-2008, 03:57 PM
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Here is a good step by step for making a sump/wet-dry.

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post #3 of 8 (permalink) Old 05-01-2008, 03:58 PM Thread Starter
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Almost forgot the powerhead I will be using says the max head is 1.3m(4.2feet). Regards
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post #4 of 8 (permalink) Old 05-01-2008, 04:10 PM
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You will need to use a real pump, not a powerhead and especially one that barely has any head. You should be looking to use a minimum Mag5 or similar for your setup.


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post #5 of 8 (permalink) Old 05-01-2008, 04:28 PM Thread Starter
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I was hoping I could build a sump without any other expenses. Idont want a really fast underwater huricane in the sump just something that works. I already tested the powerhead with a bucket and it pumped at a reasonable rate from the floor(4 feet below). I was planing to put the sump on a stand 1foot higher. Can I use the powerhead if I raise the sump more
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post #6 of 8 (permalink) Old 05-01-2008, 04:58 PM
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You can get a small pump that will do a much better job than a powerhead. Pumps are designed to lift. Powerheads are designed to push without lifting. Yes, you can get some lift from a powerhead, but it is very inefficient. A small mag or quietone pump will make your sump work much better than a powerhead and not turn anything into a hurricane. You can control the output from a pump with a ball valve made for use with PVC. Make sure you put it on the "return the water to the tank" line.

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post #7 of 8 (permalink) Old 05-01-2008, 05:06 PM
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Check out these two threads:

https://www.plantedtank.net/forums/di...-retrofit.html

https://www.plantedtank.net/forums/ge...ed-tank-2.html

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post #8 of 8 (permalink) Old 05-01-2008, 05:18 PM
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i don't think this is the best idea i'm in the process of doing a sump and over hob overflows can stop a siphon and flood i think if you want a sump you should do it right and drill the tank and get a big pump and ditch the canister


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