Overflow media

Discussion in 'Beginner Discussions' started by Nism0, 14 Mar 2012.

  1. Nism0

    Nism0

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    Hi people of MASA,

    My tank has a corner overflow which has some media in it but as I purchased the tank already running, i am not too sure whether it should stay there.

    The media is a layer of filter floss on top of ceramic rings. Due to the setup of the tank and the cupboard standing next to it, i can no longer see into the side of the tank, nor can I easily reach into the overflow without removing the hood and lights.
    The sump has a skimmer, followed by DSB and Cheato Ball (size of an orange), followed by Phosban reactor and return.

    At the moment the water flows down the media into a hole to the sump. I would like to remove the media (over a period of about 4 weeks) and install a Durso Stand Pipe, but I am affraid that i cause havoc in the tank.

    My thinking is to include a ATS in the sump but i will have to redo the plumbing so i figure why not just include a durso as well.

    So basically i would like to know if i should skip the Durso and keep the rings, or put in a durso and chuck the rings?
     
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  3. RiaanP

    RiaanP Moderator

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    Removing those rings will be better for you in the end anyway. The waterfall sound will drive you crazy before you fit your Durso.
     
  4. OP
    Nism0

    Nism0

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    Yeah, the sound is already quite annoying even with the filter floss and about a 200mm drop from the overflow. @RiaanP I have another problem though. When i let the tank run normally, the waterlevel rises and sits level with the top cross bracing. This creates 2 areas of water that never reach the overflow and the surface becomes nasty.

    At the moment I have sorted this out with a powerhead aimed at the overflow to drive more water over and lower the water level to about 1cm below the bracing. (This cost me a blenny though as he was pushed into the overflow. Egg crate was promtly installed.)
    Does this mean my overflow is not wide enough? And how can i fix it? I have thought about adding a syphon or pump and even drilling a hole just below the water level. :eek:
     
    Last edited by a moderator: 26 Nov 2015
  5. RiaanP

    RiaanP Moderator

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    Either overflow is not wide enough, or your return pump is too strong

    But most likely you do not want to downgrade your return pump. But you can always T the return line, with one pipe going back directly to the skimmer.

    How wide is your overflow?
    what is your return pump rating?
     
  6. OP
    Nism0

    Nism0

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    @RiaanP

    The main return is a Syncra 3.0 rated at 2700l/hr at 3m max. The one going through the chiller is rated at 1000 to 2000l/hr at 2.3m max.
    The oveflow is 185mm wide.
     
    Last edited by a moderator: 26 Nov 2015
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