Author Topic: DIY 4 Drum Filter  (Read 14498 times)

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Online Bradley Bradley

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Re: DIY 4 Drum Filter
« Reply #15 on: January 27, 2007, 05:26:50 AM »
EdmondLau 

I would say that both drawings you have would work. My arrangement works off to the side because of the space i have available
 
 
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Offline Edmond

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Re: DIY 4 Drum Filter
« Reply #16 on: January 27, 2007, 05:29:53 AM »
oh, wouldnt you get better flow if you had them lined against the pond since the water has to travel less? and how much are hole saws from bunnings and is there a size i should get??

edit - sorry didnt read the post - space yeah thats a problem with having big filters
« Last Edit: January 27, 2007, 05:31:57 AM by EdmondLau »

Online Bradley Bradley

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Re: DIY 4 Drum Filter
« Reply #17 on: January 27, 2007, 06:30:06 AM »
Hole saws vary in price up to quite expensive. I think we paid about $10-$15. It needs to have good thick steel. I will take a photo to give you an idea.

And when you first use one, maybe practice first on something you can throw away?

BB
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Offline DebbieKSW

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Re: DIY 4 Drum Filter
« Reply #18 on: January 27, 2007, 05:08:03 PM »
My friendly plumbing place cut my holes for free!!  ;D

BB,

Some more questions,
you have water outtake from tanks showing from one tank only,and a pipe from top of settlement drum to tank 1?....why?Maybe that is only the easiest way to draw it?
Also only a drain from the settlement tank only?Any cut off switches or taps?
I am curious but you asked for more questions.
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Re: DIY 4 Drum Filter
« Reply #19 on: January 27, 2007, 05:51:01 PM »
Bunning have a set of hole saw in their tool section called "redline" $9.95 is a must have tool for all koi ponder out there 5-100mm for drilling holes in plastic drums these saw are ok.

Offline stevelee

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Re: DIY 4 Drum Filter
« Reply #20 on: January 27, 2007, 06:55:56 PM »
Hey people,
You can get a cheap adjustable hole saw from "the warehouse" it does 25mm-150mm holes for around $7
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Offline craig_perth

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Re: DIY 4 Drum Filter
« Reply #21 on: January 27, 2007, 07:37:53 PM »
Ahhh opps yes I ment Zeolite...  :-[


BB should not have doubted you... the mesh basket holdings the K1 is a good idea!  well done mate... hows your water parameters?  Looks like a very good setup to me... are you still running oyster shell?

you mean the mesh basket holds the zeolite :)

The k1 is free in the last chamber where loads of air churns it, similar to the churn you get from a nexus. Not as sophisticated as a nexus though! I have oyster shell mixed in with the zeolite as well, not alot though.
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Offline craig_perth

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Re: DIY 4 Drum Filter
« Reply #22 on: January 27, 2007, 07:39:55 PM »
In this image, the water runs in a clockwise direction.

Now, can any pick out the important design faults that are NOT labelled?



BB Zeolite to K1 Chamber... The inlet is at the top of the Zeo Chamber and the outlet is also at the top... therefor no waterflow over the zeo and the water at the bottom of the zeo chamber could become stagnet... 
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Online Bradley Bradley

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Re: DIY 4 Drum Filter
« Reply #23 on: January 27, 2007, 10:38:09 PM »
My friendly plumbing place cut my holes for free!!  ;D

BB,

Some more questions,
you have water outtake from tanks showing from one tank only,and a pipe from top of settlement drum to tank 1?....why?Maybe that is only the easiest way to draw it?
Also only a drain from the settlement tank only?Any cut off switches or taps?
I am curious but you asked for more questions.
Debbie

Yes, there is only one outlet from the bottom of drum the one drum. I should have one outlet at the bottom of each drum so that I can drain the bottom of each easily.
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Online Bradley Bradley

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Re: DIY 4 Drum Filter
« Reply #24 on: January 27, 2007, 10:41:09 PM »
In this image, the water runs in a clockwise direction.

Now, can any pick out the important design faults that are NOT labelled?



BB Zeolite to K1 Chamber... The inlet is at the top of the Zeo Chamber and the outlet is also at the top... therefor no waterflow over the zeo and the water at the bottom of the zeo chamber could become stagnet... 

Craig, the zeolite is an undergravel filter. An undergravel filter is driven by air (not shown clearly in the image?) Have you seen how an undergravel filter is powered in an aquarium situation? It is set up the same way and so it is ok to have the in and out pipe located at the top.

was that clear?

BB
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Online Bradley Bradley

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Re: DIY 4 Drum Filter
« Reply #25 on: January 27, 2007, 10:44:22 PM »
Hey people,
You can get a cheap adjustable hole saw from "the warehouse" it does 25mm-150mm holes for around $7
                                                                              cheers

Are these made of flexible/bendy steel? These type do not last very long

BB
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Online Bradley Bradley

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Re: DIY 4 Drum Filter
« Reply #26 on: January 28, 2007, 02:35:26 AM »
Join using rubber and metal clamps.
« Last Edit: January 28, 2007, 04:50:53 AM by mrbradleybradley »
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Offline stevelee

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Re: DIY 4 Drum Filter
« Reply #27 on: January 28, 2007, 04:03:10 AM »
I will post a pic of the one i have,it has made around 8 filters and still going strong.Its not a bendy one.
« Last Edit: January 30, 2007, 04:36:02 AM by stevelee »
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Offline Edmond

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Re: DIY 4 Drum Filter
« Reply #28 on: January 28, 2007, 06:46:00 AM »
hi, today i added a third 20 litre drum to my filter - mainly as a settlement chamber , works pretty much same way bradleys
water is pumped from pond into side - goes up and gets carried via plastic tubing to other drums and has a tap at the bottom.
only thing is - most of the particles that i see in the settlment chamber get pulled up and sent to the 2nd drum and dont settle at all, is there anything i need to add to get them to settle - i added filterwool just under surface of the water in the settlement chamber so that should filter out some of the particles.


Offline Koi38

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Re: DIY 4 Drum Filter
« Reply #29 on: January 28, 2007, 08:47:58 AM »
Ed,

You need a bigger settlement container to do the job. Also you need to consider the dwell time. Sound like you don't have both. and you have to bare in mind that you have a pump fed system which means you're turning the solid waste to puree which is a lot harder to filter than solids.

Just my 2 cents ;)

rgds,
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