D I Y Canister Filter

ArauraDiscus

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Wowza, I made a homeade canister filter. I got a week off from work for whatever reason, so In my spare time at home I thought I'd make use of my time.

I had this idea, could I make a canister filter myself? Surely it would be craptacular and leaky or useless. Suprisingly not! ALl you need is....

-2 pond pumps, probably costing nearly 40 dollars total Or 2 power heads of about the same price with good attachments
-2 long sets of tubing to be cut to size
-1 bucket with a nice sealing top. Must be high quality and with a good seal
-1 sheet of plexi glass or strong plasitic
-1 large tube of aqurium sealant


and some sort of cutting tool.

When your done the filter you will also need media of some sort, foam pads, bioballs etc. Convinient trays are optional.


PICTURES TO COME

Step 1: Ge tthe bucket and open the top. Measure the size of plexi glass you will need. If your bucket is square this will be much easier. You will need to measure the heaight of the bucket and the width. Now cut it as wide as the bucket and here comes the tricky part; cut the plexi glass to about a quarter of an inch less than the height of the bucket. BUT, the last four inches of plexi glass will need to be trimmed in a pitch fork manner. It will look like you are carving a pumkin out for halloween which is a crude analogy. But these will give support and also allow water to flow through the cut parts. Trim the plexi glass or plastic more as needed. Slide it into the bucket and attach it in place with aquarium sealant.
(if this is confusing to visualize, I will be posting pictures soon.

Step 2: Take the top of the bucket for this step. Also take the tubing and measure it's width. Cut a hole to that width. Now gently push the one end of tubing through the hole. Seal it firmly and generouslywith aquarium sealant. Also plastic couplings can be and should be used to help position the hoses firmly so that when the tubes are tugged, they don't twist and rock back and forth. Also thread the tube through multiple inches into the bucket so that it can't pop out andso that the suction tube above all else, is always fully submerged in water. (Pictures will come if this is hard to visualize)

Step 3: Take the other end one side of tubing, and fit it onto the outake nozzle on one of your powerheads or pumps. Take the other end of the second tube and stick it to the intake/suction end of the other powerhead or pump. (pictures to come)

Step 4: Add media and small trays if you have them. Fill it with Bioballs, biostars, Baggies of filter media, and foam padding. Your best bed is poly fiber as your foam pad because it's not pre cut and the crude, trayless canister you will be making will not utilize a precut foam pad as well.

NOTICE: this isn't proffessional by any means, especially because I made it, so leaks can occur. If you are using this inside, house it in a large tray to collect spills that are likely to happen when you open it for maitenance.

And there you have it. Submerging the pump in your tank or pond will start the suction process when turned on. This will fill the canister. When the canister is filled, turn the second pump on and it will suck water from the canister back out into the tank or pond.

By the way, this probably will cost around 50 dollars to make and will be the equivalent of a 55 gallon canister filter depending on the quality of pumps that you buy for it. It is much easier to buy a canister probably, but this was endless fun making> it gave me a huge sense of satisfaction. Plus hey you can name it after yourself and have your own brand of canister filters. If you get the hang of it, you can start selling homeade canister filters too :hyper:

I made a small one using a small bucket before I wasted money on a larger failed experiment. The small one works and with the proper care and material, you can make a much larger one. I plan on making a bigger one soon and I will post pictures when I do. Tell me what you think of the crazy idea.
 
AHHHH it works reaaaal goood. I'm gonna start maturing these canister filters and selling them matured and all. Then I'll give a life time warranty of fixing and such. I think I may have stumbled onto some money's!

Pics to hopefully be up my the end of the week

WHat I've learned is, one pump on the outake tube gives you about a 50 gallon grade canister filter. One on both the intake and out take will give you a 100 gallon grade canister. And do not just put a pump on the intake, only the outake can have a pump alone, otherwise you will build pressure up in the canister. Good luck making your own. SOoo fun!
 
so u pump the water out the tank into the canister and the pump it back up, rihgt?

What happens if one of the pums blocks? surly u get a flood, either the tank or then canister.

It woule be better the have a way to drian the water out the tank so gravity is doing one of the jobs for you.
Something like this

CR1515_99.jpg
 
I'm not sure what you mean by blocks exactly. But if you have a one pump setup, this will be a non issue. However if you have a two pump setup, it will only be an issue if you have an intake pump. And this is also why I very much reccomend a tub under it. Also I reccomend having the intake just under the water surface. If you do this, you will have absolutely no problems. This thing works suprisingly. I know there will be some skeptics but I'll post pics when I finally find the USB cord for my digital camera grrr.
 
What i ment is with a two pump set up you could get problem easily with one of the pumps blocking and causing a back log at the other end.

One pump set up is what i was sugesting usint the overflow thing i posted a pic of.
 
Well now that I think of it, one pump may not work. Becuase if you put it on the intake, you will be pumping water into the canister and eventually water will come out of the outake tube, but it will probably build so much pressure before that happens, that the top will fly off at some point. Then if the outtake tube has one pump only, it will suck water from the canister but nothing will keep the water coming from the intake tube right? Maybe having one good filter at the outake, and one small on the intake will work. Use the small one to get the pressure going and keep water flowing into the intake, ie removing all air bubbles, and then unhook that one? If not I may have to keep it with two equal sized pumps like I have now. Maybe you've already said all this though but what about those ideas?

OK And now I undertsnad the overflow thing having a part, but hoe does it work with that, I'm a little confused.
 
You hang the box on the on the tank, the fill both sides with water, the high section you then have to suck all the air out of and it then allows the water to over flow the side of the tank with out any holes being drilled into the glass.

This will allow you to use gravity to feed the filter, then pump from the filter back into the tank, and if the pump stalls or blocks you dont have any problems as the over flow box just stall's with air getting in and no flooding.
 
well, im not sure if its considered a canister filter if its not completely sealed :unsure: my dad made these for his pond. the bucket is like a 5 gallon paint bucket or something(thats what it looks like) that arent really completely sealed. im not sure how he set it up, but he has a bunch set up in line. he just has one super powerful pump spitting it out into the buckets. i can ask him and try to get some pictures or a diagram if anybody is interested. he said he never has to replace anything in them and its the best filtration system you can get.
 
If it's not sealed, it's a sump or refugium. The only difference is that you are gravity draining and not pressure powered on intake and outlet.
 
Well it is sealed. At least my version is. It's airtight actually. I'm sure it's hard to envision though. When I'm finished the larger version, I'll post pictures so it's all a lot clearer.
 
Hiya, sounds like a good idea, and i'm very interested in pics!


quick question, what type of canister did you use? where did you buy it etc?

Thanks!


edit: sorry another quick question! the plexiglass that's cut...should it be placed in the middle of the canister? or off to one side?
 
Well I got the bucket/canister from a bakery that my friend owns. However, you can likely get something just as good or better at any home depot/lowe's or hardware store nearby.

Also the plexiglass goes in the very middle because one side will have the water flowing in. Then that water flows to the bottom, and then under the plexiglass and up the other side.
 
araura i live in rhode island, is there any way you could send me a pic of this,and maybe a price? if you were to sell me one?
 

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