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Maurice! Fines filtration

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  • #46

    here is a picture of the bottom of the tapered tank.
    i cut off the bottom of an old red plastic drum and siliconed it into place after i hole sawed out some 20mm holes and cable tied some gutter gaurd gauze over the holes.
    Attached Files

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    • #47

      the tanks came from the tank making place just down the road from our farm. they cost 200 bucks each but this one was a factory second so was 100 bucks and i had to get the guy at the shop to plastic weld a new bottom in it, which is why you see a white seam.
      the silicone tube to the side was just used to secure the red section in place.

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      • #48

        as for my sytem i do not use an earator. so have not gone to the trouble of running a relay to turn on an earator below my bio balls.
        i dont need to have the kaldness as a fines catcher.
        i threw a small amount of old stone fruit hail netting in there and it does ok and dont seem to clog up long term.
        though i do not throw kilos of food per a day either. it is just a guppy tank to hold fish indoors over our winter.

        my swirl tank is large ( maybe 300 litres) which the water level is just under half way up.
        the top section above water is used to hold bioballs which my main pump feeds water over.
        the junk sloughs and falls down to the settlement trap area.
        i have a small pump that picks up settled waste from the middle of a flat bottom culture tank and deposits it via a hose about 3.4 way down the swirl tank.
        my main pump gets its water from halfway up in the main culture tanks.

        you guys that have a tapered tank or even just a sump section built into a concret bottom or linered bottom could make use of the whole culture tank as a pretty good settlement area. and have that tapped off to a solenoid timered tap.
        make an elbow up after the solenoid to just below culture water level so that if it fails and stays open you do not drain your whole tank out.

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        • #49

          i havent got any diagrams but i can make mention of the devices out there that you can put in something into practise.

          first up you can have a timer run your main pump so it shuts off for a couple of minutes every time you want an automatic flush out.
          you stick in a relay that detects when power is lost in the pump electrical feed line and that will then send power to your 24 volt transformer to turn on your earator for your fines and open your solenoid tap a the same time.

          there is another device on the market that would sense when pressure is lost in the air line of a main earator and turn your fines trap aerator on as well as the solenoid tap.

          another way is to have one shut off solenoid on your main aerator line and one that opens up the air line to the fines air feed as well as one solenoid that opens your tap. that way you need only one aerator.
          now that is three solenoids, two that open when your 24 volt timer kicks on for a couple of minutes and one that closes your air feed to your culture tank so that air is simply diverted.


          or you can get a bottle full of compressed gas with a solenoid valve hooked to the top of the gas bottle that feeds air into to the fines aereator line..
          a pressure or an electrical sensor opens that bottle up when you want. a simple way for this is to use the same timer that runs your solenoid tap and that would do the trick vigorously too.

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          • #50

            this will give you an idea on some gizmos available.
            http://www.aquasonic.com.au/xtras/section9.pdf

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            • #51

              Thanks for all the information. I'm going to see if I can incorporate this into my filters.
              The views expressed above are my own personal views and, as such, do not necessarily reflect the views of the AKCA or the KHA program.
              SANDY

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              • #52

                question....or two.
                how many inches of down pipe are slotted to get that amount of flow?
                and
                the top of the pipe is just above the water level as an overflow, right?
                thank you


                ok, done it.
                just slotted the heck out of the pipe and put the top of the pipe below the top edge of the barrel...
                runs great and k1 started to collect stuf quickly.
                need more k1...on the hunt

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