Thank you for this. Was going nuts because I couldn't get my 307 to refill/prime and I couldn't figure out what was wrong - I had a wad of moss in the ball valve in the intake and hadn't realized it was a thing. I had been about to go nuts trying to figure out what I had done wrong. Great customer service :D

Thank you - saved me buying a new canister filter - didn't have quite enough water in my river stream tank. 2cm more water and all is good - thank you 4.45

My Fluval 306 has been working well for nearly a decade and in that time consumed no parts at all. Had one minor water leak when the o-ring got displaced from the groove. One thing that may help people is that rocking the filter can help "burp" the last of any trapped air from it. Not often do I give products a vote of confidence, good to see the 7 series are a slight evolution. The design was very good from the start.

I have 2x206 and 2x306 for 7 years and counting. Changed only two o-rings and one impeller. I say that’s pretty awesome. No need to buy any new canisters or different brand since these guys I have rock.

Thanks! Silly me didn't realize there was a little ball in the intake. It was VERY clogged. Saved my day!

Thanks a lot, I thought my filter broke. I have it for two years at least and it’s the first time I couldn’t prime. As soon as I put the nozzle out of the water it started working. Thanks for the info!

100000000 thank you Brother. I never thought about blowing out the hoses. You saved me sooooooo much money! Ty!!!

Thanks for video, was having an issue priming and this help me find and fix the issue

I love you!!! My problem was the too much hose. Shortened up and priming worked.

A really good idea that I accidentally found out is to tap each piece of the intake and output and the flex hoses against something hard. I dropped the small spout by accident in the sink, and some really nasty, rotten smelling, hardened green gunk came out. So, I kept tapping each piece, and you wouldn't believe what came out! The hoses were the worst because of the lines that trap stuff. I could easily run hott water through each one. After a hit it against the sink, I started the hot water, and a huge blob of the gunk came shooting out. I wish I had a video because it was unbelievable!

You are the best teacher ever 😘😘😘😘😘😘😘

Great video! Set up Fluval 207 yesterday evening as per the manual and another instructional KZfaq video. The 207 is my first ever use of an external canister filter as I embark on my journey into freshwater tropical aquariums. Since setup yesterday evening I've noticed the canister is emitting a constant low pitched humming which is audible from other rooms, enough to be slightly annoying. I understand this external cannister filters are supposed to be virtually silent filters. I looked up possible causes online and thought may it had some air in there as there was a lot of new bubbles made and present throughout the glass walls and all over gravel, decor and internal equipment, from when initially setting up the aquarium putting in some gravel and decor and when pouring in water. I thought maybe a lot of air in the canister after that. I've tried tilting it many times at an angle which does bring out some bubbles from the output after a slight fizzing of bubbles heard. Also tried to manually pump with the self priming pump a bit. However, there is still the ongoing hum. I am sure all the medial and baskets were assembled correctly, etc. Any suggestions would be great please as was looking for an almost silent filter! Thanks.

407 is the best👍🏼 I bought one for myself. It would be cool if 507 appeared instead of fx4, for example, or as an alternative to it. In my opinion, episode 7 is better than fx🤷🏻‍♂️ Have a nice day everyone.

Thanks for this video! I was setting up my Fluval 307, and the lid was leaking when I started to prime it, and I couldn't figure out why. You showed me that I had put the O Ring on wrong, and stuffed it into the small channel too far. I adjusted it as you showed on the video, and the leak was gone - no more water flowing out of my filter!! It's up and running smoothly now. I really appreciate your showing that on video. I may never have figured it out!

Good video. After cleaning my 307 pump today I put it together. I should explain that I keep it in a plastic garbage can (a small one, like you'd keep under an office desk - the lid of the garbage can is only about 4 inches above the top of the pump). That way if it ever develops a small leak, it won't ruin the bamboo floor I put in last year.My next purchase will be a water sensor for the garbage can. After turning it on, I checked after a minute like I aways do and the garbage can was half full of water. If I hadn't had the can the floor would have been a huge mess. Long story short, after pulling the pump and fiddling with it for some time, I replace the head gasket with a new one (I bought the yearly recommend replacement parts when I bought the machine so I knew I'd have them on hand when it was time - COVID put a dent in a lot of manufacturing time). Putting the new gasket on did the trick. It's been running for 30 minutes without a drop leaking. Best pump I've ever had. Quit and efficient.

I have a 407 on my 30 gallon tank and I love it. Bit overkill for my tank but the 407 was on sale and not much more expensive than smaller filters. Canister filters are so much better than HOB.

very useful about for the noise! :-)

I was a fan of Fluval filters for 30 years. I downsized to an apartment and now want to have an aquarium again. I bought the 306 on Amazon and it leaked badly and discovered a hairline crack beneath the O ring. Fluval was gracious enough to replace the motor unit. I got the new unit and today I hooked everything up and pouring water where the 306 insignia is located. Put some lubricant again to make sure that wasnt the problem. The plastic housing, on the outside this time, has a split on it. After losing all of my fish to the aquarium going dry and mopping water from a 50 gallon aquarium twice, I am not a happy camper with my Fluval filter. I will be making an attempt to resolve this tomorrow with Fluval so we will see what happens!

Thanks sir

Everything I need to know thanks

How should I go about troubleshooting air getting in, outside what's mentioned here? I have a new 407 but air is getting trapped, leading to a high pitched whine because the filter can't purge it. Tilting the filter will clear it and stop the sound but I'm doing it every 12 hours and it's not normal

Impeller life is dependant on substrate used. Fine sand when ingested will cause early wear. Make sure the pick up tube is not sitting too low near the sand.

Thank you for o ring information. 🌹

funny thing. the last thing covered in this the leaking o-ring issues and alignment. what happens when you get a powerhead that WILL NOT align and seal? i spend possibly 80% of my time on maintenance day trying to stop the fluval 407 from leaking due to the fact it will not push down as easily as you show in this vid, you put is down it looks like its all in place, turn on filter and bapmh leaking out of those little side bits. it's frustrating and annoying. you used to make your stuff user friendly, lately I am very sad to say it's been getting flimsy and user unfriendly. :(

I've only had my new filter running for 6 7 weeks and it looks like I'm going to have to change my impeller

Every time my power goes out my filter drains the tank at the o ring. I replace it often but maybe the square shape is stretching it in a bad way. If I didn’t have all the leaking issues I’d love this filter

Aquastop valve started leaking after 1 year of use on my 307 it's very flimsy definitely the acciles heel of this filter. A friend of mine had same problem with his 407. I changed back to an old ehiem classic 2215 not very stylish but what a filter.

Hello and thanks for the quick answer .just I won’t to make sure leet me ask again .I have the top cover of my pump the oring, is in place ,when I clump it down the to clumps under feel like playing around like loose in my opinion the clumps does not pushing the head maximum to seal pro-ply,maybe is normal maybe not that’s I won’t to know ,thanks

Full nightmare with my 207, from day 1 it's had a hum that's loud enough that it becomes hard to sleep around, there has always been a tiny gap where the 207 logo is from head to body. I have tried all the tricks in the book, checked my impeller, my seals, o ring, lubricant, hosing, strainer, changed my impeller to a new one, nothing has fixed it. [5/5/20 update] - Replaced the entire unit for another, and the problem persists, with the sound identified as originating from the canister head itself. If you're looking for a Canister filter, by design, this baby is Loud. [30/8/21 update] replaced hosing and connectors, impeller again, o-rings and even tried out adding extra lubrication to soften the sound. Still no good, avoid fluval for life.

Bought a new fluval 407 about a month ago. Unplugged it today and it started leaking. Took it all apart, lubricated the seal, put it back together, and as soon as I plug it back in it leaks again. Can’t get it to work. I’ve repeated the process a couple times with no luck

Thanks for the video!

You guys need to make the impeller cover better.Constant problems with impeller cover falling off I have 16 407s in house and three fx6 as week as 304,404,405,406 this impeller cover issue is something with the new ones.I have replaced with new parts and it keeps occurring!

Hi, my 407 intake has lost suction, it’s all very clean and new hose added. Still seems to have a loss of suction and the hose in seems to be working as normal however there is an infrequent noise of water gushing as it it had just been primed. Please help

I noticed that when I adjust the flow on the flow valve, water will leak out of the sides, when I open it almost all the way, it stopped leaking.

I have 107 and it stopped filetring. I'm trying to figure it out what went wrong. It was ok for 3 years. Now replacing impeller. Let see if that fixes it.

Hi, I bought this filter and I can’t find anywhere an answer to my question so I’m hoping someone can see this and answer me. I did not expect the outtake hose to have to be OUT of the water , so there’s a waterfall sound …and I was wondering if I could put it into the water ? (The hose) I really cannot stand the sound coming out of it , it gives me anxiety thinking it could be heard through the wall of the apartment… I woke up in the night to turn it off because it was too much , I’m thinking of returning the item but if it’s safe to put the hose into the water to stop the waterfall sound it would be just perfect 😮‍💨

Just connected my 407, flow is strong. However i am getting a leak from the canister seal from the intake side it looks like. Any ideas?

I bought the 207 today and returned after three hours struggling to get it to work. Well made however killed off my Saturday and watching fish get sick due to no filtration and frequent water changes. When primed water seaped out and flooded my floors. Made sure hose connected correctly I tried trouble shooting steps and water would not pump through. I'm not sure I had top on right. There should be big easy to read instructions but hard to see instructions. I did watch install video. Highly frustrating. I feel very deterred now and frustrated now with the hobby.

Have a small leak coming from the flow adjuster leaver (the circular grey ring to the right of it), it's fixed when I bring the leaver up halfway but small leak when down(full flow). How do I fix this issue?

Hello, I have a problem with the pump - rubber black ring fell off of the pump from inside of the cover and now the bubbles are not possible to get out of the filter. The pump doesnt push anything. I dont know how to get it back, any tips?

Been having issue with my 207, since last night. I took out the impeller, cleaned it and put it back. Lubricated the gasket thingy and still not working. Flooded my living room twice now. 😢

I just got a new 307 my hose are short , I have no water in my canister but the hose won’t flow to fill up the canister on its own , so no water is shooting out when I would plug it in , I already try pumping it and still nothing , what am I missing ?

Leaky motorhead from the Oring, have replaced, lubricated and still have issues. Help!

Hi fluval I cleaned out my 207 recently all the pipework, impeller etc all cleaned... My outlet power has decreased a large amount even with the power adjuster on full power ... Any advice? I have only had the filter for around 2 months and I really love it so hoping its an easy fix... Thanks fluval! 👍

My motor assembly when sealed with the locking mechanisms does not close all the way. I can push it down to make the seal but then the clamps hang loosely. None of these will solve that issues. Advice please?

So my 407 filter was working fine until about a month ago. I have minimal length tubing. I have replaced all of the foam media as well as the impeller and shaft. The filter is primed and I have cleaned the ball valve at the end of the inlet tube. There is no water leaking from the canister. The only thing I have noticed is the priming rod seems a little stiff but is working. My filter isn’t moving any water at all. Any suggestions?

I have a 306 and have only had it setup for about 6 months now. I purchased in an emergency situation, used it for a little while and upon my first cleaning I had a really hard time getting the filter to prime and also it was leaking at the power head. I packed the filter up and put it in a closet and setup my sunsun filter and used that over the next few months. I returned to the fluval to give it another shot, I shortened the hoses to the tank and it immediately fixed the priming issue but the leaking at the power head is still a major issue. I literally have to put all my weight on the power head after latching the clamps and even then sometimes I have to take the unit apart and put it back together and again put all my weight on the filter and it will eventually stop.

Any idea what’s the problem if it sounds like the motor is super weak or not on at all when I plug it in?

Got the 207 but the version that goes wjth the fluval aquarium so the pipes go through the bottom of the tank. I cant prime with the output above water as it will not go that high, will i have problems priming ?

The intake/outtake is not clipping in, the red part is not going all the way down?

I just started my filter 207 brand new and it’s been running for like 30 and every once in a while it’ll make a noise then stop the flow for a split second the spits water back out. Any tips??

I just got a fluval 207 only 3 days old and it’s humming is there something wrong with it

I have a brand new fluval 407. I've followed all directions setting it up, I even used silicone for the O ring and propeller and the loud clicking from it is loud and annoying. What can I do to stop the horrible loud clicking noise??

Great filter series I only wish the fx6 had those big basket bio trays like the 407

I know this is an older video so I probably won't get a response but I have the fluval 207 and it's leaking from the bottom causing a flood

I own the Fluval 107 for now about 10 month. Filtration, circulation, maintenance, cleaning, everything really high value. In the past the hum was not a problem, stand in the living-room. We change now in another room. So the noise is a problem. It is not a problem of the air, clean everything, using silicon lubrification. I look to all inside parts. The hum was a problem of this pump from the beginning. Any ideas? Thank you.

Yesterday my filter valve that's connected to the hose broke. The red part that clips in the hose too the filter was very stiff and snapped. Any ideas why?

First, I’m so glad I found your KZfaq channel!!! The manual can only tell you so much. I’ve had my Fluval 307 for about 8 months. It has started making this gravely/static sound. This by the way started after our electricity was turned off for 24 hours because of a fire in our area. Does the impeller need replacing already?😬

I have a fluval 407 that I think is not working well, the cover for my top tray is bent in and I feel that I am not getting proper flow through my canister because of this bent cover.

I set up my new Full 407 ,I hear a intermittent slurping sound .

Is there any way you could help me now? My filter is not working and nothing you showed is helping me. It seems like it’s not sucking up water and won’t prime now. I really don’t want my fish to die

I'm testing my used 206 on an empty tank to see if it's worth buying an intake stem and strainer for. I've opened the Aquastop valve, primed it and followed all instructions but nothing is happening.

Brand new 307 won't prime. Primed manually and it runs very, very quiet, but puts out almost no water from outlet. I'm returning it.

Two months ago I purchased a Fluval 407 for my Fluval F90 aquarium, but flow has slowed down immensely and I haven't changed the setup in the slightest. The original 204 would even flow better. I have changed and cleaned all media, foam and bio (unwillingly because I'm still trying to cycle the new tank setup). I have no blockages and I have no kinks in hoses, extra long hoses or anything else for that matter. Please help, what could the problem be.

Any idea why my return is not working at all after a cleaning? I pumped it but nothing.

I just set up a 207 canister filter and got it all primed ready to go and plug it in and bam water flowing everywhere!!! The o ring is in the correct groove so I can't figure out what could be causing it to leak out all around the seal?? Help!!!

Recently my 407 has started making clicking noise. The worst thing, the filter periodically just stops functioning. There is a slight sound from the filter but not circulation. I have replaced the impellar but the issue persists. I do clean my filter regularly including the impellar. If I unplug the filter for a couple hours the filter restarts. Do the magnetic units driving the impeller develope dead spots making the impellar suddenly stop.

I can’t get my 407 to prime.🤦‍♂️

Unfortunately may try a different canister easier to understand than the Fluval

I bought a 107 today, cleaned it up and put it together..plugged it in, pumped it and its just leaking like mad from the grey side of the filtration cartridges...ive taken it apart and put it back together..but every single time I pump it, it just leaks like mad..its correctly sealed and all that...ive been at this for hours what's wrong with it?

My 307 filter has stopped working after a power outage. I plugged it back in and noticed that now it was making a loud noise. I did some research and everything I read said it was an impeller. I replaced the impeller with a new one due to the noise, put everything back to gether and filter is still not working. The filter is only 1year old. I still hear some noise coming from it granted its not as loud as before but still hear some grinding. Not sure what else to do. I checked all the hoses for leaks, primed it, and made sure I cleaned the impeller area too so I am not sure what else to try. Lost for things to try. If anyone has any ideas please let me know. Thank you

What if clamps stop pulling down the head fully?

You did not mention HOW TO PRIME THE PUMP. I can’t believe how quickly parts have to be replaced on these Fluval. Not sure I would get another one.

Can use this filter in a 30lt tank.

Right now I am having trouble as my output part of the filter made a funny noise and now it’s not blowing bubbles into the tank at all everything seems to be plugged in and where it supposed to be can you please help

I have a 407 that I bought about 6 weeks ago and it was working great. Today we had a power outage and now I can't get it running again. Any help?

Did you send one to the Aquarium Coop for testing? If you can get Cory to dissect this thing in front of a cam, it'll sell itself in the US.

Can the amount of flow be adjusted of my 407, I am getting alot of vibration on my return

Any ideas on how to adapt your ribbed tubing to in-line equipment? I currently run a 407 on my 40 breeder, but I had to use standard smooth vinyl tubing in order to plumb in my co2 reactor and in-line heater. Would be awesome to be able to use your ribbed tubing with aftermarket intaks and in-line equipment.

I have a new Fluval 207 120vac 60Hz for my 30 gallon tank and keeps spraying micro bubbles preventing my tank from being clear. How could I get rid of this? I installed just yesterday 8/7.

My prime handle on my 307 isn't working. How do I fix it?

my impeller is noisy from the get go lol, nothing seems to be broken though, it makes rattle sounds

Hi, The gasket has detached from the Primer Assembly with Cover for 07 Series Filter how can i solve?

Another question....to clean out the goses with a 207 filter that goes through the bottom of the tank, would you have to drain the tank or just try to change it very fast ?

My clamps on my 307 is is not clamping pro-ply.looks like the clamps is loose when I clamp the cover .is that’s normal ?

Thanks for the amazing vid. Is there a way of reducing the water flow on the 307 series? I have two 307 filters running with Lily pipes, so the current is quite strong. Tank is heavily planted so I feel the filters are needed to create good water flow. However Iam planning on buying some angelfish... if there a way of controlling the water flow at all?

Set up my 75 gallon fish tank it's so noisy I shut it off lubricated it put it back was Quiet for 15 that's it! Dont get why

I have a new problem that is not covered in the Q&A! My 600 leaks where the Fluval Valve attaches to the motor head. I remove this everytime i clean. It does not go back easily and leaks at the joint. How to fix this?

I have a 207 that has abysmal flow after using it for just one month. Ive cleaned everything weekly I cant seem to figure out whats wrong :(

Least if you buy one of these you wont have to buy an air pump or air stone all mine does is spit out bubbles . And the clips have play in them which connects gasket to body obviously wheres the airs getting in as its new checked all connections lubed the o ring e.c.t

I recently bought a 307 but it seems like its not sucking any dirt or debris out of my tank is there a problem or is it broken not really sure

My 306 leaks on both sides of the Lift-lock clamps through the small holes on either side of the Lift-lock clamps. I replaced the motor head O-ring and it still leaks. The leak is not constant but seem to start whenever the AquaStop valve is disturbed, so I just purchased a new AquaStop and when I removed the old valve and went to install the new one I noticed that water was leaking out the little holes on either side of the Lift-lock clamps. When in operation the pump has full suction. The only thing i can think at this point is the motor head O-ring is the is not the correct size. Please advise, thank you, Barry

Hey there, the rubber gasket at the base of the primer stick came off, how do I get it back on? Do I need to remove the primer stick entirely and if so, how do I do that?

If the impeller isn’t working right would that cause no water going in/out?

Yesterday I bought a fluval 207. I can hear the noise from the impeller and it is loud. It gets louder when I slow down the water current. What should I do now?

There have been a fair amount of complaints about the main oring leaking, any info on thos?

Hi, my new Fluval 307 is making a humming noise. Is this normal?

My filter pushes my turtles when they swim by the output. How do I lower the pressure?

My problem is the valve won’t go into the filter

Hello, I have a question for my 407, it’s making a very low humming sound. Originally it was making a very loud noisy sound but after we left it to watch this video it suddenly stopped. I still can’t seem to get it to prime. Any thoughts?