3ft Sump Filter

Discussion in 'New members' started by Aryann94, Sep 13, 2019.

  1. Aryann94

    Aryann94

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    Good Evening everyone. I have recently decided to go with a 3ft sump filter for my 4ft Live Bearer tank. I have no idea how to build one or what is needed.

    Can anyone assist with any advice or guidance?

    TIA.
     
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  3. MariaS

    MariaS Moderator

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    Hi @Aryann94 ,

    Welcome to the forum

    Firstly, is your tank drilled and has it got an overflow for the sump?

    Are you buying a sump or you planning on building it yourself
     
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  4. OP
    Aryann94

    Aryann94

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    Hello. My tank is not drilled as it is already fully set up and functional for the past year. I am planning to use a 3ft tank as a sump, which I will purchase or build myself. The part I am unsure of, is how many baffles do I need and also, how to get the water out of my tank into the sump. I was told I could use a HOB filter to do that and then use a submersible pump in the sump to get the water back into my tank, yet I am highly confused as the HOB's I've seen, don't seem to have a flow rate above 1200 liters per hour, whereas the Sobo Submersible pumps that I've seen have a flow rate of 2500 to 3000 liters per hour.
     
  5. Whoknows

    Whoknows

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    For me it was cheaper just to buy a 3 foot from my LFS (they cost around 600 rand) instad of building it, but look for pricing from a few stores in your area first :thumbup: you'll need 2 baffles at minimum to divide into 3 compartments (mechanical filtration first then biological filtration and lastly the pump) you can add as many as you want though. Other options one for a refuigium, one for heaters, one for chemical and second mechanical etc ;) for a 4 foot you'll need a 2000 lph return pump if you go larger you can just restrict it back with a ball valve :cool: for drainage you can get the tank drilled but as yours is set up already that won't work to well. I've never heard of using a HOB filter but you can use a HOB overflow box. (Like this https://www.tropicalaquarium.co.za/threads/skimz-overflow-box.33174/)
     
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  6. OP
    Aryann94

    Aryann94

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    Thank you. I will definitely research and keep this in mind.
     
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  7. Reafer

    Reafer

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    Bought a 3ft sump from my LFS for R620 new about a month ago. Just to give you an idea on pricing
     
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  8. Whoknows

    Whoknows

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    You got a good deal :thumbup:
     
  9. OP
    Aryann94

    Aryann94

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    How exactly does a sump work if your fish tank is not drilled?
     
  10. Whoknows

    Whoknows

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    You'll have to get it drilled or use the piping over the top
    The return is like a canister filter hangs over the top at the surface
    The drain you can use an overflow box like I linked above or build a DIY drain

    the water drains down into the first chamber normally foam or filter floss. then under a baffle into the next chamber where you put your bio media (rings matrix etc) the over one more baffle into the return pump.
    that is a basic version you can customise it how you like
     
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  11. OP
    Aryann94

    Aryann94

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    I had a look at what you linked. The idea of using the HOB came from this as well. If yoy look at the piping in the image in the link you sent, it is similar to a HOB. I was told to drill and plumb a HOB in the same way, but my main concern is that the flow rate of the HOB will not match the return pump.
     
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  12. Whoknows

    Whoknows

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    Never heard of using a HOB but maybe you'll have to give it a try:thumbup:

    You're going to have issues though if you're trying to match 2 pumps the one with the higher flow rate in the sump will start sucking air after awhile :(
    The overflow I liked doesn't have a built in pump as with a HOB but as I said maybe you should give it a go
     
  13. OP
    Aryann94

    Aryann94

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    What if I use two pumps then? One in the tank to pump water out of the tank and in to the sump and then one in the sump to pump water back into the tank? That way I can get two identical pumps with the same flow rate.
     
  14. Reafer

    Reafer

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    You really dont want 2 pumps, a pump pumping water out the tank sounds like a disaster waiting to happen , if the power goes out it will still form a syphon out the tank and if your return pump is off your tank will drain . Matching 2 pumps is near impossible even with 2 identical pumps as ones pumping up and ones pumping down . Head height will effect the return pump and flow will decrease. You want something like an overflow box and let gravity do the work for you .
     
    Last edited: Sep 16, 2019
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  15. Jandre Frey

    Jandre Frey

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    Honestly, I would consider stripping the tank and drilling. It might sound like a hassle, but it’s safer and cheaper than overflow boxes. I recommend drilling 2 holes, one as a main drain and another as backup drain. Using a gate valve, you can match the flow of the main drain to the return pump to get silent operation. Go google drain types in aquariums, for example herbie overflow. You will also want a small weir in the aquarium to keep your fishes from getting sucked in.
    Alternatively, here is an image of a overflow box. I just worry about them, because there a VERY SMALL chance that the siphon can break during a power outage and cause a flood. It’s a small risk, but still possible...

    9DCC873B-B35B-450B-B620-39998149A282.jpeg

    D154792F-105F-4D1A-AFDC-80F586C072D3.jpeg

    B543E00B-97F4-4A66-96C1-FF7AF12F9D88.jpeg
     
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  16. Reafer

    Reafer

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    I use a stockman standpipe in my overflow and a modified reverse durso in the sump to stop it sounding like a washing machine lol
     
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  17. Reedfish

    Reedfish Moderator

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    If it was me, I would use a canister filter on the tank
    I am a big fan of them and have found them relatively easy to set up and maintain.
     
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  18. oscar freak

    oscar freak

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    I'm not very good when it comes to sumps but on Saturday I went to the local dump in Kensington and there was a most complicated looking sump someone had discarded,looked brand new fittings and all.will go see if its still there.
     
  19. OP
    Aryann94

    Aryann94

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    Thank you for the guidance.
     
  20. OP
    Aryann94

    Aryann94

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    By the looks of it.. Drilling is inevitable.
     
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  21. OP
    Aryann94

    Aryann94

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    What canister are you currently running?
     

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