DIY canister filter

spartan said:
Looks much better than the PVC DIY canisters. I like the design
The main concern with DIY canisters is... do you trust it?
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do i trust it? yeah, it's been running for one and half a month, without any leakage, not a drop. i guess the most important thing about it, it's the sealing, need to let it run for a while after you just set it up or after the change of filter material to see if there is any leakage. other than that, it's pretty much the same concept of commercial canisters.
 
Kasakato said:
Can I get a picture of the I/O? What are the change of it leaking?
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sure, i will take a picture of it tonight.
chance of it leaking? if you use this tape properly, there is no chance it will leak.

tape.jpg
 
spartan said:
Looks much better than the PVC DIY canisters. I like the design
The main concern with DIY canisters is... do you trust it?
Click to expand...
I'm curious, what would your concern be? Performance? Leakage?
 
How high is the tank above the pump, 99% chance you're getting a lot less than 250gph due to the height the pump has to push the water. Usually the rated gph is at 0' head height. Also how does the water get to the bucket? are you using an overflow, or is it a true canister where EVERYTHING is sealed and it just pulls the water down? Once its running is there air in the bucket, or does it completely fill with water. Also if its sealed with that tape how hard is it to open up and clean out and then reseal? Also it looks like the input is on the bottom of the barrel? how does it flow through the media.

Hope I dont sound Overcritical, I just like knowing how things work...Im a big DIY-er!!
 
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Seaman said:
How high is the tank above the pump, 99% chance you're getting a lot less than 250gph due to the height the pump has to push the water. Usually the rated gph is at 0' head height. Also how does the water get to the bucket? are you using an overflow, or is it a true canister where EVERYTHING is sealed and it just pulls the water down? Once its running is there air in the bucket, or does it completely fill with water. Also if its sealed with that tape how hard is it to open up and clean out and then reseal? Also it looks like the input is on the bottom of the barrel? how does it flow through the media.

Hope I dont sound Overcritical, I just like knowing how things work...Im a big DIY-er!!
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currently, my bucket is like 2.5 feet below the tank.

because the bucket is sealed, water got suck in the bucket.

once it's running, there could be air inside, or there could be not, if you put the input pipe above an air stone, let air go in with water, then there could be air inside the bucket (but in this case, make sure the input pipe is wider than the output pipe).

everything is seal fixed, except the cap, you can just twisted it tight to seal it, or reverse the twist to get it open, it's very easy to open up the bucket and clean everything inside.

input is at top of the bucket, check my previous reply in this thread for the layout of this bucket.
 
I'd be wary of leaks too but wouldn't lose sleep over it as long as everything is threaded/taped. There isn't much pressure in the system. A small threaded valve on top could be used to release trapped air.
 
beviking said:
I'd be wary of leaks too but wouldn't lose sleep over it as long as everything is threaded/taped. There isn't much pressure in the system. A small threaded valve on top could be used to release trapped air.
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Yeah, I made one just like this out of a tiny 70 gph LG pump in a Mason Jar. It probably only runs less than 30 gallons per hour due to the load. No leaks at all.

It does get a build up of air in the container, mostly due to high oxygenation. It is easy to release it, but in such a small space like my mason jar, it has to be released every 3-4 days to prevent the pump from running dry.
 
I am VERY impressed with your DIY canister filter. I wonder if I could ask some questions?

1) Did you use existing threads in the output at the bottom, where the dispenser was located?

2) ON the lid were there already holes you reused? What did you have to do to them or how did you drill them?

3) Since your last post, how has the system worked? Any leaks?

4) Any changes you would make if you were to do it again?

5) Know of any links to threads of others following your design or doing something similar that was successful and you like?

Thanks very much.
 
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