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DIY WD filter and Over flow - lots of pics


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36 replies to this topic

#1 MatHarvey

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Posted 18 August 2007 - 08:29 PM

Hey there fellow fish nerds,

Thought i would make a contribution to this nice local website. Got a few friends out there that i would like to share with. To paint the picture, up untill recently i worked as an aquarist at AQWA, meaning wicked job, heaps of spare time, absolutly no money. So i basically built everything my self. I have done my best to model this tank on the surge zone of lake tanganika. yet to add a surge bucket though.

i have detailed with photos how i constructed my tropheus's filter system.

First of all the tank that recieved the royal treatment, the fish can from Kev at Malaga Aquarium, great mix of trophs.



and the filter running:


and this is how it is built:







Then i didn't want to drill my tank to after giving the grey matter a workout i finally figured out how a overflow worked enough to trust it in my rental appartment. Here is how it is build:



The integral part and insurance against the syphon breaking is this one way air valve.

I hook it up to the resticted intake of a pond pump using air tubing, this constant sucking insures that the syphon keep flowing smoothly.

In this tank i also use a SCWD device (thanks to Matt at Veba's) which helps my add some surge type action to the tank. As you can see the tank has a bit of a DIY look about it but give it a few months and algae will hopefully blend everything in nicely..

hope this inspires others to save $ on expensive filters and make there own. leaveing more $ for fish. biggrin.gif

#2 KrAmEr

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Posted 18 August 2007 - 09:32 PM

Nice DIY filter :wink: looks very efficient
Im using the exact same PVC overflow on my tank and it works great.

How big is the tank?

#3 cobby

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Posted 18 August 2007 - 09:35 PM

Onya Mate that is intresting well done biggrin.gif

Regards Cobby

#4 MatHarvey

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Posted 18 August 2007 - 09:38 PM

tank is 75 gallon,

1.5 meters long, 35cm wide, 55cm high

how have anyone's overflows every flooded there tank or sump on them?
mine have worked very well for a few months but i'm still paranoid!

#5 cobby

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Posted 18 August 2007 - 09:39 PM

Non return valve top idea biggrin.gif

Regards Cobby

#6 KrAmEr

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Posted 18 August 2007 - 09:43 PM

(MatHarvey)
tank is 75 gallon,

1.5 meters long, 35cm wide, 55cm high

how have anyone's overflows every flooded there tank or sump on them?
mine have worked very well for a few months but i'm still paranoid!


Ive been using that same overflow for a few months now and it hasnt ever caused a flood and it has gone through a few power outages.

#7 MatHarvey

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Posted 18 August 2007 - 09:47 PM

sweet.... damn crappy winter... those storms nearly drove me to get a small generator!

#8 alec

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Posted 19 August 2007 - 10:59 AM

could you take some pics of the siphon working
i am a bit confused how it works

#9 MatHarvey

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Posted 19 August 2007 - 06:49 PM

heres a plan of the overflow... easier to see:


Check out these links for some insight on how exactly it works;


http://www.cichlid-f...ht=pvc overflow

hope that helps
mat

#10 Leevers

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Posted 20 August 2007 - 09:47 AM

very nice, your knowledge at AQWA im sure will assist many members

#11 MatHarvey

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Posted 24 August 2007 - 06:54 PM

heres a pic of the overflow working...



#12 Iamsam

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Posted 24 August 2007 - 06:57 PM

does your overflow make a sucking/draning/gurgling sorta noise
cos mine does and i dont no how to stop it

#13 MatHarvey

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Posted 24 August 2007 - 07:04 PM

yup... it did, i stopped it by putting a piece of hose (slightly larger diameter than airline tubing down the intake pipe. This does 2 things.. i think

1. Breaks the wirlpool effect of the water
2. allows the syphon to breath better.

i have to fiddle with it every time i stop the overflow (during water changes etc) to get it to work properly (silence the gurgle) but i find that i work quite well. Good luck ... its just experimentation to get it right

mat

#14 qazwsx

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Posted 24 August 2007 - 09:30 PM

Hey all,

dunno if this works for real, but a mate in syd has put Plastic chain (thin stuff from bunnings down his pipe, this removes most of the noise from the vortex and gives something for the water to run down apparantly...

He also got thicker stuff and shoved it down the gutters on his house, I think this is where he got the idea from Better homes and Gardens laugh.gif maybe you could try that? - he rates it but I haven't tried it myself.

Cheers

Paul

#15 elliott

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Posted 01 November 2007 - 08:41 PM

What is pipe C used for in the above design?

#16 elliott

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Posted 01 November 2007 - 08:42 PM

What is pipe C used for in the above design? also how do u start the siphon?

#17 KrAmEr

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Posted 01 November 2007 - 08:57 PM

(elliott)
What is pipe C used for in the above design? also how do u start the siphon?


It's a vent. though im not exactly sure how to explain how it works...

#18 MatHarvey

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Posted 02 November 2007 - 03:21 PM

Why doesn't it stop syphoning and how do you start it?

answers..


when water level drops below standpipe level ( pipe cool.gif it drains till it reaches the level of the T piece (part F). the water will stay at this level, hence pipes A remail full of water. When water begins to flow again the water in pipes A keep the syphon working.

pipe C is to allow the syphon to breath.

To start the syphon fill pipe B and C (pipe B should be underwater) and suck on the one way valve (part G) till the water starts flowing.

#19 ado

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Posted 23 November 2007 - 11:47 AM

Very nice DIY filter idea!

What size PVC did you use for the overflow system?

Any what sort of pump have you got in the filter?

I am planning to build something similar for my 6x2x2

#20 MatHarvey

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Posted 24 November 2007 - 11:51 AM

i use 25mm pvc for the overflow.

Weir Pro 6000 pond pump for return.

Good luck with the system for ya 6 foota. I can help with info if ya need bud

mat




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