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DIY Canister filter

This is a discussion on DIY Canister filter within the DIY Aquarium forums, part of the TFK Resources category; --> The housing will be a piece of 4" PVC pipe, how long is unknown as of now ( I tend to fly by the ...

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Old 09-23-2010, 08:54 AM   #11
 
The housing will be a piece of 4" PVC pipe, how long is unknown as of now ( I tend to fly by the seat of my pants not always a good thing). That much I know. I have looked around on the net and that seems to be the most popular size. Some have used 3" but then stated they could have used 4" and had more room for media. so 4" is where I will start.

I spent some time last night looking at the filter media options and saw that people were using plastic pot scrubbers. is that a replacement for the coarse sponge? thats what it looks like to me. I have also seen another person use the black wire loom cut into small pieces as bio-media. Anyone know anything about that. I have lots of the small wire loom still in the package laying around that I could use or would I be better off using off the shelf bio-media?

The unknown is the best part about a DIY project.

Home depot I will darken your doors today WOO HOO!!!!
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Old 09-23-2010, 09:13 AM   #12
 
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the scrubbers are for the bio to grow on... much like say the little ceramic tubes... you can get poly scrub pads that are chemical free for the pad part (got mine and a $1 store) the layers i would use personally would go
top- pad scrubbers
middle - scrubbers
Bottom - Carbon when needed and or those white crystals for nitrate removal (dont recall the name of them i used them mixed about 50/50 with carbon)
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Old 09-23-2010, 12:33 PM   #13
 
OK I just got back from lowes (it was closer) and I have got what I call a great start.

shopping list: (from the recipt) first numbers are lowes part numbers

23288 4" pvc female slip on adapter 2@ 5.25...........................10.50
294919 4" x 2' pvc DWV Cellcore pipe ..................................... 5.74
21484 1/2" pvc ball valve 2@ 2.65 ....................................... 5.30
23929 1" X 1/2" cch40 bushing 2@ 0.64 ................................. 1.28
126819 1/2" sch40 elbow .................................................. .. 0.81
129319 1/2" slip X 3/4" fht adptr............................................ 1.53
22538 1/2 " ml/adptr insert 3@ 0.34 ..................................... 1.02
180849 4" pvc flush clnout plug 2@ 2.83 ................................. 5.66
253245 4" pvc all plastic snap in ............................................ 4.56
67945 1/2 x 3/4 x 18" cobra riser 3....................................... 3.28
25010 teflon tape 2@1.01................................................. 2.02
23540 pvc glue .................................................. ............ 3.73

add 4.20 tax and it came out to 49.63

I found some stuff that if ti works out it will make pulling the filter for cleaning easy. I will post a pix of the items tonight when I get home. I went out during lunch and got the stuff.
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Old 09-27-2010, 10:16 AM   #14
 
Ok, I got some work done on the filter and after a mistake or two, three, ahhh whos counting I have the body of the filter done. I had been working with my sons Boy Scout troop all weekend so I haven't had time to upload the pix's yet. The first real obstacle I will need to climb is the pump location. In most o the ones I've seen on the web show the pump inside the canister. With the physical size of this pump it will not fit into the canister (unless I move to a completely different size tube). It will have to mount outside the canister. I have been playing with some ideas and have not decided on the way I will go. The way I'm leaning to is to put the pump at the bottom and reverse the filter media so that the clean water comes out the bottom instead of the top. It will take some extra plumbing but it may be the best way. I will be going over and over and over this setup today and will also see what yall have to say.
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Old 09-29-2010, 02:11 AM   #15
 
heres a idea. if you have the pump mounted on the inlet tube to the canister and have the canister lay on its side and run the return from the bottom to the tank. this way the water will be forced in threw the media and whatever else ya add and out the other end back to the tank with little resistance. cant wait to see how ya actually hook this up!!!
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Old 09-29-2010, 04:14 PM   #16
 
bigrift - the only problem I could see with that would be if I could get all the air out of the filter. Il look into it though.

On to the updates. I got some of the pict up-loaded and have also run a wet test on the filter. I am not happy with the pump. It makes way too much noise, I can hear the wife now.

Here are some pix's

the parts


and a quick wet test.



it works and its dry. But its not what I wanted it to be. I will keep tring to improve on it. I may have to change pumps to get that "clean" look that I want
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Old 09-29-2010, 11:43 PM   #17
 
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cool cool

awsome man....thanks for the motivation...i see great potential ...keep us posted on some modifications...uv sterilzer perhaps...
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Old 09-30-2010, 09:38 AM   #18
 
Quote:
Originally Posted by badxgillen View Post
awsome man....thanks for the motivation...i see great potential ...keep us posted on some modifications...uv sterilzer perhaps...

HAHAHAHAHAHA i was looking at the UV sterilzer yesterday, rubbing my chin thinking now how could I fit that into it. I can get ahead of myself. I still dont have the pump issues worked out yet and I still need to figure out how to put my heater in there and then I'm tring to add another thing to it. I'm my own worst enemy!!!!!
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Old 10-04-2010, 12:45 PM   #19
 
Ok here's an update. Not feeling the love with my current pump i decided to replace it. My local harber freight had a sale going on and had 285 GPH pumps for 14.99. So I got one of them and I really like it. I will keep the pump on the outside of the filter so that I can possably get my heater inside the filter. I still need to pickup some filter media and a few more 1/2 pvc connecters and I should be getting close. I'll post some picts as I get things done. I got a little bit done over the weekend. Not much just worked on the connection of the pump to the filter. Putting it on the outside will give me more options on what goes insdie the filter.
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Old 10-06-2010, 02:15 PM   #20
 
I've finally got the canister finished. I will post some pictures so you can see the progress that I've made. I have yet to complete the return lines too and from the tank. will start on that soon ( I hope )

sponge


scrubbers



bottom of canister



first layer starts with sponge then carbon then sponge. Didn't have carbon with me so you will have to use your imagination









without the carbon in there I still have 3" of space left. I dont know if I may have too many pot scrubbers in there, I put 12 of them. I figure I will loose 1.5" when I add carbon.

What do yall think. too many pot scrubbers or just enough?
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