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  1. #81
    Extreme Koi Member Rank = Rokusai Chipmonk's Avatar
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    Just think at the price with amalgam uv and cleaning pump and control panel all included it would go very well in front of the N300. AEM Easy Drum Review


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  3. #82
    Could someone advise please. Could I use the filter as gravity fed under fish tanks as per attached image?

    easydrum-gravity-set-up2.jpg

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  5. #83
    Senior Member Rank = Hassai apbarr's Avatar
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    Not as shown, your outlet from the tanks to the drum would need to be near the water level of the tank otherwise if the pump stopped working the drum would overflow. For that type of set up I would go for a pumped drum placed at a high level with a gravity return

    Quote Originally Posted by discuskeeper View Post
    Could someone advise please. Could I use the filter as gravity fed under fish tanks as per attached image?

    easydrum-gravity-set-up2.jpg

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  7. #84
    Why would the drum overflow if water goes out by gravity from the drum to the sump which is lower?
    If the pump placed in the sump stops working only certain amount of water comes back from tanks to drum/sump.

  8. #85
    Senior Member Rank = Yonsai goldengrahams91's Avatar
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    Quote Originally Posted by discuskeeper View Post
    Why would the drum overflow if water goes out by gravity from the drum to the sump which is lower?
    If the pump placed in the sump stops working only certain amount of water comes back from tanks to drum/sump.
    Ya the way that is set up it wouldn't work and would just overflow if the pump shut off.

    As the drum is underneath the tank it has no way of stopping the supply of water from the tank and as the pump is not pulling it away it would just spill onto the floor until the water level in the tanks reached the same height as the outlet pipes and stopped supplying water to the drum.

    If you are going to use a gravity system with a drum ideally all the filtration has to have the same water level height as the tanks.
    If you are going to use a pumped drum system then you would have the drum and filter above the tanks being pump fed and then gravity return back.

    The reason this sort of system works for marine tanks and the like is because they have the outlet pipes at the top of the tank so when the pumps stop working only a few gallons will flow into the sump and the sump would be designed so it could take the extra water volume.

    If you really wanted to set it up like that you may get away with it if you have the outlet pipes at the top of the tanks so it would not food the drum when the return pump is shut off. But with the way drums work with water level sensors I think you may get issues as it detects when to clean the drum when the water level drops and I'm not sure it would act the same way with it under the tanks as apposed to next to the tanks.

    A pumped drum system in this set up would be more reliable but it's whatever you decide to do. Just make sure which ever route you end up going make sure you test it properly by shutting the pump of yourself to see what will happen if the pump broke or you lost power.

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  10. #86
    Sorry, but as I said, if the pump stops working then only few litres of water comes back from fish tanks. Fish tanks have outlets/overflows drilled in top of the front or back panel.
    My fault, as I confused you with the drawing, corrected now.

    easydrum-gravity-set-up3.jpg

    So if you stop supplying water to the tanks the level in tanks stay the same.
    Last edited by discuskeeper; 15-03-2017 at 03:13 PM.

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  12. #87
    Senior Member Rank = Yonsai goldengrahams91's Avatar
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    Quote Originally Posted by discuskeeper View Post
    Sorry, but as I said, if the pump stops working then only few litres of water comes back from fish tanks. Fish tanks have outlets/overflows drilled in top of the front or back panel.
    My fault, as I confused you with the drawing, corrected now.

    easydrum-gravity-set-up3.jpg

    So if you stop supplying water to the tanks the level in tanks stay the same.
    Yes with the pipes in the top you wouldn't get an overflow issue.

    I'm not sure how it would work with regards to the water level sensors. Might be worth emailing that photo to one of the drum manufacturers that you are looking at using any see what they say ?

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  14. #88
    Senior Member Rank = Supreme Champion freddyboy's Avatar
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    Quote Originally Posted by goldengrahams91 View Post
    Yes with the pipes in the top you wouldn't get an overflow issue.

    I'm not sure how it would work with regards to the water level sensors. Might be worth emailing that photo to one of the drum manufacturers that you are looking at using any see what they say ?
    Good point on the diagram going to drum manufacturer mate.

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  15. #89
    Ok, thanks. So what normally makes the sensor to work properly i.e. how certain water level is maintained?

    If I look at the connection chart for gravity flow I don't actually understand how water level drops when mesh is dirty when the outlet is still connected with biofilter (diagram from first page of this thread).

  16. #90
    Discuskeeper, how are the solids from the bottom of the tanks going to get to the drum in this case?

  17. #91
    Senior Member Rank = Yonsai goldengrahams91's Avatar
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    Quote Originally Posted by discuskeeper View Post
    Ok, thanks. So what normally makes the sensor to work properly i.e. how certain water level is maintained?

    If I look at the connection chart for gravity flow I don't actually understand how water level drops when mesh is dirty when the outlet is still connected with biofilter (diagram from first page of this thread).
    When the drum screen starts to block it will let less water through thus meaning the water level in the clean side of the drum and also and filtration after that on the same level will start to lower as well.

    When this gets to a certain point it will trigger a low water sensor and the drum screen will be cleaned.

    Once the screen is cleaned full water flow will be resumed and the water level will return to normal.

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  19. #92
    Quote Originally Posted by discuskeeper View Post
    Ok, thanks. So what normally makes the sensor to work properly i.e. how certain water level is maintained?

    If I look at the connection chart for gravity flow I don't actually understand how water level drops when mesh is dirty when the outlet is still connected with biofilter (diagram from first page of this thread).
    Water level on the outside of the drum.
    mesh gets clogged up so less water flows out of the drum into the clean water side, hence requires cleaning cycle to activate

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  21. #93
    Quote Originally Posted by Toffee View Post
    Discuskeeper, how are the solids from the bottom of the tanks going to get to the drum in this case?
    Inside the tanks you can have a pipe that reaches bottom of the tank so the water to the overflow is actually taken from the bottom. There are many ways of solving this.

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  23. #94
    Senior Member Rank = Yonsai goldengrahams91's Avatar
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    Quote Originally Posted by Toffee View Post
    Water level on the outside of the drum.
    mesh gets clogged up so less water flows out of the drum into the clean water side, hence requires cleaning cycle to activate
    Normally talking from experience from marine tanks I have had in the past.

    You would have pwerheads (circulation pumps) in the tank which would keep the debris suspended in the water colum which the overflow would then catch.

    You can even set up a weir system.
    This acts like a skimmer in our koi ponds. It will skim the surface of the tank and you can then also make slots in the bottom of the weir so it also draws from the bottom of the tank.

    When setting it up like this you would then set up a twin stand pipe system to get silent overflowing of water without the risk of overflowing.
    You can drill the sides of the tank for this but it's easier to drill the bottom of the tank







    These are just some of the photos of how it was set up in my marine tank.

    As you can see you would drill two holes in the bottom of the tank.
    One pipe would go all the way to the top and be set to whatever water height you wanted in the tank.
    Normally this will be just slightly taller that the wier height.
    You would then set the second pipe about 1 inch lower but this can be varied depending on your needs.

    With this system the shorter pipe acts as the main sypone pipe and takes away 99% of the water, normally this has a ball valve on it this way you slowly close the ball valve untill the water level reaches the second pipe.

    This way you get silent siphoning plus if you main syphon pipe blocks you then have the second pipe to take the water down into the sump until you get to fixing it
    Last edited by goldengrahams91; 15-03-2017 at 04:34 PM.

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  25. #95
    Ah, thanks for taking the time to explain.

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  27. #96
    This is fascinating. I'm located in the US, and our electrical grid is 120v/60hz. Could anyone take a photo of the electrical label on the controller and UV so I can see what it would take to make it work over here?


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  29. #97
    Here we have 220V and 50-60Hz so you will probably have to get in touch with manufacturer to see if they can modify drum for you.

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  31. #98
    Senior Member Rank = Hassai apbarr's Avatar
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    A further update on my experience with this drum. It has stopped working yet again

    Same issue as before despite the replacement main shaft, the drum just stopped turning. I contacted the manufacturer and they have asked me to basically take it to bits and send them videos to prove it isn't working before they will consider a replacement.

    Can no longer recommend this drum and I'd avoid it at all costs.

  32. #99
    Extreme Koi Member Rank = Rokusai TAC's Avatar
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    That's a right bummer less then 6 months use not fit for purpose, I would send a video and ask for full refund.

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  34. #100
    Senior Member Rank = Hassai big h's Avatar
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    As Tac says,a refund is the only way forward .

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