Please enlighten..

[KRUNNCH540]

I've been trying to find some information, but I cannot. So I want to ask you guys. What would prevent me from hooking up an AGA MegaFlow system to say a 2260 Eheim Canister filter? The input on the Eheim would be connected to the drain pipe of the megaflow and the return pipe to the output of the eheim. I'm not concerned with input and output hose sizes, but logistically speaking?

[tanker]

Not advisable (IMO). If one or the other motor fails you can have too much pressure or to much vaccume causing either the hose or fittings to burst or them to over-drive and burn out motor.

[jm1212]

the only problem there i can see is that something goes wrong and then you have a whole tank of water on your floor.

[DarkSoul]

there is NO WHERE near the amount of pressure needed to burst tubes or fittings, on an eheim filter.

its MAX 2PSI

[tanker]

there is NO WHERE near the amount of pressure needed to burst tubes or fittings, on an eheim filter.

its MAX 2PSI

MAX 2PSI ?!?!?! Is that ALL ??? My angles puff more than 2PSI.

[mellowvision]

pics please

[Mgamer20o0]

lol

[KRUNNCH540]

Hm...

[Squawkbert]

there is NO WHERE near the amount of pressure needed to burst tubes or fittings, on an eheim filter.

its MAX 2PSI

Yes, but Eheim classics pump hard enough that they actually run under slightly negative pressure in the canister. Pumping into the Eheim input side may well change that. It's a recipe for leaks.

[UCF-Planted]

If you fill up the tank so the overflow is full, not acting like an overflow, then you are basically just using the the overflow to hide the intake, which should be fine. Also makes sense to stash the heater, CO2 reactors, etc. there where there is plenty of water flow. You could even just make the overflow just an inch or so shy of full and still get surface skimming. As long as evaporation doesn't drop the water level and expose the heater, etc. (if you have them in there) or so low that there is not a full layer of water over the intake. You just want to make sure you don't suck air.

Unless the MegaFlow is something other than AGA's trademarked name for an in tank overflow, I'm not sure I understand what anybody else is talking about.

[KRUNNCH540]

UCF-Planted - I will have the intake low enough so that it will avoid evaporation and that will be the supply line to the intake of the Eheim canister. Probably there will be no pump other than gravity to get the water down to the intake of the canister. Once the water is in the canister I will be pushing it back out via the Eheim Canister GPH output and if necessary add an additional pump to get it up the 3-4'. At the point where the water exits out of the canister and into the return overflow pipe I will be running pvc along the backsize of the aquarium with holes drilled all along to spread out the new filtered water along the whole distance of the aquarium. In addition that will reduce down the surface agitation that I would have gotten if I had used the prescribed output hoses. I just feel like I'm missing something.

In an effort to prevent any leaks I will be using extremely high pressure rated hoses and pvc along with maybe even sealing my eheim canister inside a container and sealing it off until maintenance.

[UCF-Planted]

I don't think you need to go to all that trouble. The way a canister normally works is that water is drawn into an intake tube, and pumped out of an output tube. 4'-5' of head is normal, because canisters usually sit on the floor. People put their input tubes at all kinds of different places, near the bottom, middle, or top, doesn't really matter too much. Same with the output from the canister, lots of people put the spraybar below the surface to reduce agitation and prevent off-gassing. Gravity fills the canister from the bottom up, syphoning water through the intake, and the pump at the top of the canister pushes water back into the tank. If you hookup the intake to the drilled hole at the bottom of tank behind the MegaFlow it's just like putting your intake at the bottom of the tank. The canister is already sealed, because the intake is a syphon that provides the same amount of pressure that your would be feeding it through the drain. For the output it's the same thing. You are hooking up a modified spray bar, that's fine, so long as it's not too restrictive. If it's not any higher up or harder to push through than any other modified spray bar then no problem.

[KRUNNCH540]

Thank you so much for your reply. Most helpful I have had/found since I began researching this method. I will probably be investing in the canister soon and will post my experience as I go.