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09-16-2011, 07:39 PM #1
Quick Fix for Fluval airlock issue
I bought two of the Fluval 305 canisters about 3 years ago. One has never been a problem but the second is a bear to prime and I dread filter cleaning time with that filter. I can never get it going after cleaning it.
Which was today. I tried priming slow and priming fast. I tipped the canister to force out air. I tried filling the canister first all the way full and then half way full. I must have taken it apart 5 times, cleaning the impeller, making sure strainer didn't have crude in it and finally tore the hoses off the tank and cleaned them out in my bathtub. (About 100 dead cherry shrimp fell out.)
Get the bloody filter back together and nothing! So I went in search and some guy wrote a post 3 years ago saying to suck on the output hose a couple times. I'm like, "oh yuck". Well, I did it. Two little pulls on that output line and the filter took right off. I didn't suck water or crap out of the line.....but apparently I sucked out an air bubble! (I has quite happy I cleaned the lines today.)
Fortunately, this only happens a few times a year but I sure will remember his advice in the future. Fluvals are dead quiet and filter well but these air locks appear to be a common problem with some of them.
09-16-2011, 08:11 PM #2
Its not just fluvals either. I got a free Renostar from a guy who was having the same issues and said it was broken. I put a dry rag over the end of the hose so I dont have to touch my lips to it, a few good pulls and it works.
Once its primed its fine, no problems when the power goes out or anything. As far as Im concerned it was just a free filter. It wasnt until much later I learned you arent supposed to have to do that.
09-16-2011, 08:57 PM #3
If you install valves and disconnects, specifically on the intake side, you can disconnect the canister, clean it, reconnect, open the out flow, then the intake and the canister will fill right up.
09-16-2011, 09:19 PM #4
0Originally Posted by Lady Hobbs
My Fluval 205 fires up within seconds after I clean and prime it, thank goodness. But should it stall on me one day in the future I will remember to clean the hoses before taking a pull on the outlet hose.Warning; Bulldog Pleco guarding my Sons tank now..
Please remember; every keystroke has a consequence.
09-16-2011, 11:51 PM #5
09-17-2011, 04:22 AM #6
I fill my fluval....tipping and rattling it on the sink until all the air bubbles come out, topping the water as they do. Hook it up and away it goes.
Sucking on a hose aint gonna happen here. 1. i cant get access to them and 2. major nasty!Lots of tanks
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09-17-2011, 11:27 AM #7
My Cascades have a prime button and all my units prime and fill easily. One way, that I'm guessing here, that could work would be to pour water down the pipe until it is filled (the one you normally would draw air out of - Assuming the canister is full already!) Then reconnect and turn on - I'd think that would get the system running ... maybe?
09-17-2011, 04:03 PM #8
0Originally Posted by Alasse
09-30-2011, 02:32 AM #9
Here's another tip; if you use a power head
I have a Eheim 2028 Professional II filter, even though there is a self priming feature, I sometimes have issues getting it to fill after I clean it (could also be due to the fact I have to intake lines - one has a built in skimmer).
Rather then sucking on a hose that's been in the aquarium (fish use that water as their toilet you know) what I do is hold a hose over the intake line of the filter and put the other end over my power head. It not only primes, but gets any air out as well... and there's no nasty after taste!"Hindsight is always 20/20, but looking back it's still a bit fuzzy"
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