Author Topic: D.I.Y Micro Strainer  (Read 6348 times)

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Offline Koi38

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D.I.Y Micro Strainer
« on: January 19, 2006, 06:04:02 AM »
 Hi Guys/Gals,

After a long researched, I finally decided to make a micro strainer. Got this idea in another koi forum ;)

Size is 260mm in diameter and 300mm in height. This will go in my settlement hoping it will reduce my maintenace a lot more ;)
Purpose of this strainer is to stop the micron waste going into prefilter. If this thing works, I will convert my prefilter to another bio unit ???

This unit will suit a blue drum filter or even a square chamber. The unit will rotate by vortex effect and also with the aid of the backwash system. So its a self cleaning unit 8) More on the backwash later :)

Materials for strainer:
1 x 8L bucket with a snap on lid, 1 x S/S 280 micron screen, silicon, expandable foam and a piece of 10cm pipe as sleve.

Materilas for Backwash unit: (Will get later on)
20mm pipe, some elbows and a tee and a 3000Lph pump.

* 1st pic shows the rim of the bucket is being cut by a hack saw. This will be the top part of the unit. You'll see what I mean later on ;) I actualy cut the lip off the bucket ealier, this will secure the screen to the bottom part of the unit 8)


* 2nd pic shows the lid of the bucket, will be used now as the bottom part of the unit. Centre hole will be cut to fit a modified 100mm pipe


* 3rd pic shows the 100mm sleeve which was heated up to stretch to 110mm diameter for clearance to slide easy to my 100mm trasfer pipe.This will also help to float according to the pond water level.
« Last Edit: October 19, 2006, 07:14:05 PM by Koi38 »
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Offline Koi38

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Re: D.I.Y Micro Strainer
« Reply #1 on: January 19, 2006, 06:19:17 AM »
Continuation:

* 1st pic - Shows you how the unit will be installed to the lid.


* 2nd pic - Shows the unit now glued together with silicon. Now I just have to wait for the glue to dry a little :-\


* 3nd pic - after the silicon had skinned I applied the expandable foam to the top rim of the unit. This foam is to aid the strainer to float, rotate and adjust accordingly :) I used sticky tape to prevent the foam sticking on the screen. Now I have to wait atleast 12hrs for the foam to dry. Tomorrow I'll trim the foam with hack saw blade and will post more pics 8)


rgds,
Jon

« Last Edit: October 19, 2006, 07:13:33 PM by Koi38 »
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Offline ken S

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Re: D.I.Y Micro Strainer
« Reply #2 on: January 19, 2006, 08:26:45 AM »
Hi Jon
Looks very good mate, I have two questions please

1. Did you have to fix the 280 S/S micro screen into a circule or will it hold it's self in place?

2. How will it rotate?

With Regards

Ken S
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Offline Koi38

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Re: D.I.Y Micro Strainer
« Reply #3 on: January 20, 2006, 12:23:06 AM »
Hi Ken,

The S/S screen was glued on the top part only. The bottom part was just squashed in. I'll post more pic coz I had to pull it a part to day and trim the S/S screen a little :)

The drum will rotate if you have a vortex effect in your chamber and also by the pressure of the backwash system which I'm still working on. Still waiting for the pump to arrive next week ;)

rgds,
Jon
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Offline Koi38

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Re: D.I.Y Micro Strainer
« Reply #4 on: January 20, 2006, 01:24:07 AM »
I trimmed the foam today :)


Looks pretty good so far 8)
« Last Edit: October 19, 2006, 07:15:45 PM by Koi38 »
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Offline Koi38

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Re: D.I.Y Micro Strainer
« Reply #5 on: January 20, 2006, 01:28:11 AM »
Well did a test run to day and the unit is a bit tall, I had to trim it down a little :)

Rotation is anti-clockwise :)
« Last Edit: October 19, 2006, 07:16:42 PM by Koi38 »
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Offline craig_perth

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Re: D.I.Y Micro Strainer
« Reply #6 on: January 20, 2006, 05:07:54 AM »
Looks GREAT jon!!!  Well done!
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Offline Koi38

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Re: D.I.Y Micro Strainer
« Reply #7 on: January 20, 2006, 05:20:35 AM »
Thanks Craig..............long way to go yet :o

I'm still toying around with backwash system ???

rgds,
Jon
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Offline Darren

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Re: D.I.Y Micro Strainer
« Reply #8 on: January 20, 2006, 08:39:43 AM »
Wow mate,you should start your own company up with all your ideas ::)

Wish you could move over here and sort my disaster area out. :(
New pond upgrade coming soon..........

Offline ken S

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Re: D.I.Y Micro Strainer
« Reply #9 on: January 20, 2006, 09:35:01 AM »
Hi Jon
Thanks for your reply, do you think that you will have a problem with rotation when it gets loaded with fines?
I have looked at making one but the outlet from my vortex is to high so I would have to fit it over an elbow, but never the less very interesting project mate and I will keep watching and looking at ways to fit one on my system.
With Regards

Ken S
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Offline Koi38

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Re: D.I.Y Micro Strainer
« Reply #10 on: January 21, 2006, 01:42:40 AM »
Wow mate,you should start your own company up with all your ideas ::)

Wish you could move over here and sort my disaster area out. :(

Darren,

My ideas are good for single production only not mass :D

Why don't you move here so I can help you with your disaster ;D ;D ;D

rgds,
JOn
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Offline Koi38

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Re: D.I.Y Micro Strainer
« Reply #11 on: January 21, 2006, 01:46:25 AM »
Hi Jon
Thanks for your reply, do you think that you will have a problem with rotation when it gets loaded with fines?
I have looked at making one but the outlet from my vortex is to high so I would have to fit it over an elbow, but never the less very interesting project mate and I will keep watching and looking at ways to fit one on my system.

Hi Ken,

Once I finalise my backwash system(spray bars) the screen shouldn't build up any fines as the spray bar will clean it as its rotates.

rgds,
Jon
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Offline Koi38

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Re: D.I.Y Micro Strainer
« Reply #12 on: January 21, 2006, 01:52:11 AM »
Hi Guys,

Just to give you some ideas how the backwash system looks like. 8)

I'm still testing this and atm its not good and not bad either.

rgds,
Jon



« Last Edit: October 19, 2006, 07:20:32 PM by Koi38 »
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Offline Koi38

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Re: D.I.Y Micro Strainer
« Reply #13 on: January 22, 2006, 07:08:27 AM »
 Hi All,

Here is the final spray bars after the test was  a success O0





The pic below is the backwash system in test mode before I trimmed the pipes to suit. You'll notice that one pipe has 4 slits and the other has 3 slits. I had same slits originally but they it will not clean the screen properly ???  so I staggered them like this _-_-_-_ this way with right pressure it should clean the screen well. The water in this bucket was actually rotating, pic didn't do justice, I even had to put a rope on the pipe to stop it from rotating :o.
« Last Edit: October 19, 2006, 07:29:58 PM by Koi38 »
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Re: D.I.Y Micro Strainer
« Reply #14 on: January 23, 2006, 02:06:17 AM »
Hi All,

Just completed my DIY micro strainer and I'm very happy with the results. Its been running since this morning and I took some video 8)

Check it out and let me know what your think ;)

rgds,
Jon

http://www.zippyvideos.com/1003892203352886/p1230150/
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