Diy canister filter help.
- Thread starter Zhewitt04
- Start date
This was the prototype! I actually moved the output of the filter to the side. It seems to leak around the lid. I cannot believe the amount of pressure put on this with just a siphon. I mean its crazy. I was thinking last night. What if I put a hole in the intake above the water line? I know I loose some siphon but isn't that what I want? Sorry I will get a updated picture I jsut had that one already on my phone.
Whats kind of insane is that the thing doesn't leak at all when cycling. I just don't get how a siphon can be that powerful. Could I shorten up my intake so I have fewer holes to siphon from?
I bought some 6" schedule 40 pvc and planned on making it into a canister with some end caps and a 6" union near the top. I was gonna drill the top and bottom for 3/4" bulkheads and run a mag7 on the top side of the lid. Kind of like the setup of an eheim 2260.
I got sort of far into the project and realized it would cost much more than a comparable store bought filter. The cost of materials on my build list was close to exceeding $300. I ultimately reused most of the materials on other projects and just bought a sunsun 304
I got sort of far into the project and realized it would cost much more than a comparable store bought filter. The cost of materials on my build list was close to exceeding $300. I ultimately reused most of the materials on other projects and just bought a sunsun 304
I assumed you mint during the actual running of the pump. It doesn't leak under normal pressure! It leaks under pressure from the siphon. Anybody have any tips to lessen the siphon pressure? Would moving the bucket up towards the tank help?
Millerkid519 suggested doubling up the bucket by placing one on the outside, but perhaps it would be better to doubling the bucket by placing one on the inside. Take another 5 gallon bucket, cut off the bottom and ribbed top, cut the bucket length wise so it no longer is a solid tube, now cut a smaller strip off from one of the cut ends, so that when you place the cut-up bucket into the canister bucket the cut ends abuts each other tightly and the 2 bucket walls are snug against each other. May even go as far as melting some of the spare plastic to "weld" the new seam permanently. I hope this makes sense
That's what I was getting at with doubling up the pails all I would do tho is leave the other pail the way it is and drill a bigger hole where the bottom bulkhead is so it only seals on the inside bucket. No cutting involved just a hole saw and the prototype might be a better functioning canister with one less concern. Inside or outside won't make a difference I wouldn't think
You are probably under negative pressure with the pump running. With the pump off the pressure increases and the leak occurs
Exactly. The canister runs under a vacuum. The only time it should be under pressure is when the power goes off.
Go under your stand and try to pop the lif off a running canister. It's damn near impossible, i suspect the force of the vacuum is actually pretty significant.
