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  1. #1

    DIY Sieve Topped Bakki Shower System

    I built this system to accompany my Eazy Pod as it struggles with finer filtration and biological. So having this after makes all the difference.

    IMG_20170706_1207229.jpg

    A link to a video of it in operation.
    https://youtu.be/Ecoce0tPGqQ

    Thanks for popping in.


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    Extreme Koi Member Rank = Grand Champion lee63's Avatar
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    DIY Sieve Topped Bakki Shower System

    Nice one dave DIY Sieve Topped Bakki Shower System interested in how you incorperated the blade return in the bottom box.


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  5. #3
    Quote Originally Posted by lee63 View Post
    Nice one dave DIY Sieve Topped Bakki Shower System interested in how you incorperated the blade return in the bottom box.


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    Cheers Lee,
    Its a Spillway rather than a blade I got from a company in Rotherham.

    200mm Stainless Steel Waterfall Spillway Veggie Filter 150mm Spout koi pond weir | eBay

    The shower is made from 4 x 35L Really Useful Black boxes. I get these from Amazon and use them for various builds as they are really well made and have flat walls for incorporating unions and fittings etc. This size is £15 each. But you can see in the video why I like them for showers, they have a gap on each side when stacked that allows air to be drawn in and doesn't leak. PERFECT!

    IMG_20170704_1632175.jpgIMG_20170704_1632233.jpgIMG_20170704_1651062.jpg
    Its pretty simple really make sure its level and cut the hole out.
    IMG_20170704_1656298.jpg
    Test Levels again can never be to sure and you want the water to fall evenly (well I do lol it would seriously annoy me if not haha)
    I drew round the base of the spillway on the lid of one of the boxes, cut this out to make a backing plate for it. Some aquatic black silicone and screwed it into place using SS Screws.
    IMG_20170704_1850504.jpg
    As I didn't want the media in the bottom tray submerged in water constantly I had to raise it above the spillway somehow. As you can see from the image above its just under 9cm. So set about cutting 9cm lengths of PVC pipe I had plenty of 1.5 inch so thats what I used.
    IMG_20170704_1908077.jpgIMG_20170704_1906266.jpgIMG_20170704_1923261.jpgIMG_20170704_1923199.jpg

    2 x Filter Media Grids Egg Crate Marine Coral Frags Koi Pond Aquarium Filter | eBay

    I bought the media grids from the bay, two sheets for £15 delivered. The two sheets makes 4 grids the size imaged. That's the base done, I used the silicone to tidy up the screw heads and bits but that's pretty much it fella. I did have to take a small section of the vertical strips either side of the spillway away. This is because they where inline with the screw holes. I used my grinder with a fine cutting blade as jigsaws just shatter these boxes.

    IMG_20170705_1630114.jpgIMG_20170705_1631089.jpg

    The middle boxes are so simple, just cut the base out leaving a 15mm lip to hold your media grids.
    IMG_20170704_1920197.jpgIMG_20170704_1923071.jpg
    Then they just stack up as many as you like, happy days,
    IMG_20170704_2106504.jpg

    The top is a bit more intricate, it will require another write up as I built a self draining sieve into it. However as I wasn't using a spray bar on top (which you could use instead of the sieve and just have a shower). I needed to manifold the water, if I used the media crate on top given the waters tendency to find the path of least resistance it would end up only flowing through certain parts of the media.

    So I got the trusty drill and drilled lots of holes, testing how the flow of my 8000lph pump worked through them to find my perfect amount.. I used a countersink bit to tidy them up which not only looks better it helps for a cleaner flow.

    IMG_20170704_1936346.jpgIMG_20170704_2102496.jpg

    You could create a spray bar over the top or even through the sides using tank connectors, which means your lid will sit flush meaning no bounc out. I buy most fittings from Swell UK for the black stuff or pipestock.com for the grey high pressure pvc stuff.

    If you have any questions though fella just pop them on this thread always happy to help.

    Thanks for reading.
    Last edited by dave_vr6; 07-07-2017 at 09:17 AM.
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    Extreme Koi Member Rank = Grand Champion lee63's Avatar
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    Thanks dave DIY Sieve Topped Bakki Shower System excellent right up mate. I actually have one of the same type of spill ways, its on my top pond returning to the main pond DIY Sieve Topped Bakki Shower System that was of the bay and i think most probably same guys too DIY Sieve Topped Bakki Shower System
    Im really tempted to give this a go tbh as ive been looking at ready made showers but cannot justify the prices for a couple of plastic boxes really.


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  9. #5
    Quote Originally Posted by lee63 View Post
    Thanks dave DIY Sieve Topped Bakki Shower System excellent right up mate. I actually have one of the same type of spill ways, its on my top pond returning to the main pond DIY Sieve Topped Bakki Shower System that was of the bay and i think most probably same guys too DIY Sieve Topped Bakki Shower System
    Im really tempted to give this a go tbh as ive been looking at ready made showers but cannot justify the prices for a couple of plastic boxes really.


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    No worries mate,

    I know what you mean crazy money for some boxes and pipes. I incorporated the sieve for fines after the pod but just pop a spray bar on top instead and its a perfect shower.

    I have done a video on the sieve section for an American chap who requested most of this anyway. Will post a link when its uploaded.
    Built not bought!

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  11. #6
    Second Video
    https://youtu.be/ul6DhjdEW2I

    Thanks for popping in.
    Built not bought!

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  13. #7
    Extreme Koi Member Rank = Mature Champion Andre Asagi's Avatar
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    Hello Dave. I have watched your video and subscribed to your channel.

    Despite watching the video; i can't quite figure out the sieve part. Any chance of a diagram please?

    How does the waste get to the waste exit without losing too much water?

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  15. #8
    Hi I will show some more images only the waste ends up in that pipe. The actual water flow cant go down the drain if that's what you mean. All I lose is what's in the waste pipe and tray.

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  16. #9
    Quote Originally Posted by Andre Asagi View Post
    Hello Dave. I have watched your video and subscribed to your channel.

    Despite watching the video; i can't quite figure out the sieve part. Any chance of a diagram please?

    How does the waste get to the waste exit without losing too much water?
    This image shows the top of the shower while functioning. As you can see the sediment is forced down the screen into a drain channel.
    IMG_9873.jpg

    The channel is then connected to the waste pipe, the only way the channel would fill up is if the screen got blocked. Once a week I remove the screen and give it a rinse so mine doesn't block. As it just lifts in and out easily I don't find it an issue.

    IMG_9874.jpgIMG_9875.jpgIMG_9881.jpg

    This then settles in the waste pipe, which goes out the back of the shower. I also drilled an overflow hole in the channel in case the screen did block in the hope the sediment would settle in the channel and the water could overflow.
    IMG_9876.jpgIMG_9877.jpg

    The waste pipe is the shorter of the two, so you can see its not a case of opening the valve and getting a constant flow from the pond.
    IMG_20170705_1556127.jpg

    I hope that helps to explain the sieve a bit better chap. I wish I had done it on a larger scale but then it is only my growing on pond.

    Thanks for popping in
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  18. #10
    Extreme Koi Member Rank = Mature Champion Andre Asagi's Avatar
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    I think i am with you now. The pictures above help quite a lot. I will attempt to draw how i think you have done it, to see if i have understood correctly. It's a genius design in my opinion.

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    Extreme Koi Member Rank = Adult Champion john1's Avatar
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    Like it Dave,i have just built one for my grow on but with no seive,up and running today and working well.

    Your seive is a good idea with the drain etc,is it ordinary mesh or wedged?

    I use the ordinary 250 micron on my home made ultra seive and it does a good job.
    John

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  22. #12
    Quote Originally Posted by john1 View Post
    Like it Dave,i have just built one for my grow on but with no seive,up and running today and working well.

    Your seive is a good idea with the drain etc,is it ordinary mesh or wedged?

    I use the ordinary 250 micron on my home made ultra seive and it does a good job.
    It's ordinary mesh mate and I use 300 micron. Only went for the sieve as the eazy pod is pants imo. A poor mechanical filter really but hassle free cleaning.

    The sieve deals with the fines but I plan to pop a multichamber between the two. The likes of the cloverleaf or something.

    Thanks for the kind words though men appreciate it.

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    Last edited by dave_vr6; 28-08-2017 at 05:41 PM.
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  24. #13
    Extreme Koi Member Rank = Mature Champion Andre Asagi's Avatar
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    John - Yours is excellent too. A bit beyond my skills though, with the weir floating on the balls and fibreglassing involved. Not to mention coming up with the housing.

    This one seems more "do-able" *, since i already have some grey Euroboxes from shower mk 3 that i could use for the housing and might even have the grids still.....somewhere. I even have some SS mesh....somewhere.

    * Apart from the blade at the bottom. I won't even attempt that.

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  26. #14
    Extreme Koi Member Rank = Mature Champion Andre Asagi's Avatar
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    Silly question but where would i be able to buy the pvc right angle stuff for the mesh please?

    What do i ask for? Would Screwfix or Homebase sell it? What is it used for normally?

  27. #15
    Quote Originally Posted by Andre Asagi View Post
    Silly question but where would i be able to buy the pvc right angle stuff for the mesh please?

    What do i ask for? Would Screwfix or Homebase sell it? What is it used for normally?
    Pvc right angle I got mine in Wickes. I am sure it's available elsewhere.

    Wickes Angle Black PVC 15mm x 15mm x 1m | Wickes.co.uk

    Check sizes though.

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  29. #16
    Extreme Koi Member Rank = Mature Champion Andre Asagi's Avatar
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    Thank you. I actually found myself near a B&Q this afternoon with an hour to kill. I found their right angle pvc and got some. Then i watched your video again and yours appears to have more structural integrity than the pieces i got. I think mine were 20mm x 1 metre. So i dunno. I got white though. I have a pattern i follow (at times) IF a choice is available, i use white pipe and fittings inside the filters because it's easier to see dirt on it. Then black or grey outside the filters because it looks better.

    I'm going to try Homebase shortly.

    Just need the square guttering stuff now but i'm trying to avoid buying 2 metres of it if i can.

    Oh and some ss rivets. I looked for them in B&Q but couldn't find any. I'm thinking Screwfix might be the place for those.

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  31. #17
    Just some of the water that comes out of the waste pipe from the back of the shower.

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