Increasing existing sump volume

Discussion in 'Beginner Discussions' started by Uysster, 14 Oct 2014.

  1. Uysster

    Uysster

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    Hi there fellow, MASA members.

    I want and need to increase the overall sump volume of my existing setup.
    The main reason is because I'd like to extend the amount of time between topups.
    I currently have to add about 3L of water every second day.

    Is it way too dangerous for my livestock to have my system running while adding glass partitions to the sump with aquarium safe silicone?

    Looking at the below picture, I was thinking of adding glass partitions to the top of the existing ones and then silicon them in place, but I doubt this to be safe for my live stock, nor am I a risk taker.

    Else, what other ideas are there looking at the photo of my sump?
     
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  3. Uysster

    Uysster Thread Starter

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    Here's the sump.

    uploadfromtaptalk1413276220677.jpg
     
  4. 459b

    459b Moderator MASA Contributor

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    Increasing volume of sump isnt going to change the rate of evaporation. 3l every second day is nothing, on a good day im doing close to six litres.
    You cant go sumpless for the time required for the silicone to dry.
    Why not install an auto top up?
     
  5. rakabos

    rakabos

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    If anything having a bigger sump will increase evaporation
     
  6. rakabos

    rakabos

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    In the space u have there, create a RO reservoir and install an auto top up, you will need to only fill that up once a week and your tank will be more stabile
     
  7. Uysster

    Uysster Thread Starter

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    Will do some research into auto topup solutions...
    Preferably DIY, mechanical, not electrical...
     
  8. Uysster

    Uysster Thread Starter

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    Trying this out now.
    Looks unneat, but seems to be doing the job quite well.
    Will over a few days now.

    uploadfromtaptalk1413318305080.jpg
     
  9. Uysster

    Uysster Thread Starter

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    Water levels in dp and sump seems to be staying constant since 14:00 today...

    uploadfromtaptalk1413318391858.jpg
     
  10. RiaanP

    RiaanP Moderator

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    That will fail...

    Either as drum gets emptier and the suction inside prevents it from letting water out.

    Or you leave a backdoor open increasing airflow around the tank, that again increases evaporation.

    NO.

    You will end up either with a dry pump or with too much RO dropped into system
     
  11. Uysster

    Uysster Thread Starter

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  12. Uysster

    Uysster Thread Starter

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    Not at you...
     
  13. Uysster

    Uysster Thread Starter

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    At the plausibility of your theory.
     
  14. RiaanP

    RiaanP Moderator

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    water do not evaporate at the same frequency each day. Factors like drafts and ambient temperature and even moisture in the air plays a part. OK, Namibia the moisture is not that an issue an in Durban. But you can see this everyday. Your washing does not take exactly the same time every day to dry.

    Did you test the drum at different internal water levels to ensure that it always releases water at the same rate. When its full with not a lot of air lock but a lot of gravity. Versus when its at 25% with a big airlock and less water weight inside being pulled down by gravity?
     
  15. Uysster

    Uysster Thread Starter

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    That is exactly what I'm testing now. But I'm doing it over a few days.
    Keeping a close eye on it...
     
  16. Toolboysa

    Toolboysa Moderator

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  17. mariusmeyer

    mariusmeyer

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    If that container is 100% air tight it can work as a gravity fed system. The water in the last chamber will drop below the plastic pipe from the container, air will go up and water down. When the water level rises to the level of the plastic pipe the water will seal it up again and water flowing out will stop. To test if it will work, open the tap completely with the outlet pipe submerged in a bucket of water. Then lift the container so that pipe is exposed and water should run out of the container. Drop it down again so that the pipe is under water again and the flow should stop. if all this happens then you are good to go.
     
  18. Uysster

    Uysster Thread Starter

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    So far so good... :thumbup:
     
  19. Raimund

    Raimund

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    We've all spent big bucks on our tanks and livestock : what's a few hundred extra on a AT. They work like a bomb and are fail-safe.
    My system looses 20 l/day on evaporation, but on some days as low as 10 !
     
  20. Uysster

    Uysster Thread Starter

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    It's looking "fair" / "good" so far.
    Only problem is, now I can see more clearly how much water is really evaporating! :eek:

    It looks like in excess of 30L during the week. (The total setup is only, 180L.)

    It only comes as a shock, because I was never expecting such a lot to evaporate...
     
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