Sump Design Help - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 09-23-2014, 04:17 PM Thread Starter
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Sump Design Help



Please do not mind my professional use of Paint.

Plan is a view of the front of the tank.
I have a question regarding the walls ( separators) in sump.
Does No.4 has to be lower than No.2 ? If so by how much ?
Can No1. and No.3 go all the way to the top of the tank or should i leave a gap there ?


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post #2 of 5 (permalink) Old 09-23-2014, 04:35 PM
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Quote:
Originally Posted by Eviltwist View Post
Does No.4 has to be lower than No.2 ? If so by how much?
They can be (and often are) the same height.

Quote:
Originally Posted by Eviltwist View Post
Can No1. and No.3 go all the way to the top of the tank or should i leave a gap there ?
They are almost always slightly lower than the top of the tank.

If something were to block or reduce flow, water will pass over the baffles. If you leave half an inch, the water will simply flow into the next section. If they are flush with the rim of the tank, water will end up on your floor.


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post #3 of 5 (permalink) Old 09-23-2014, 04:59 PM Thread Starter
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Thank you for a prompt response.

If anyone else has some insight please share.


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post #4 of 5 (permalink) Old 09-23-2014, 06:42 PM
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You want to leave enough empty volume in there just in case of disaster. If the return pump fails you don't want water to end up on the floor. Most sumps have holes in the tops of 1 and 3 so that water flows into the next section instead of outside the sump (like the other guy suggested)


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post #5 of 5 (permalink) Old 09-24-2014, 04:44 PM Thread Starter
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Okay so its either leave a gap on top or drill holes. Sounds cool, will be gluing it today.


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