I've owned my Fluval 306 for about 2 years now and am having a first time ever of low flow rate problem. Might it need a motor head tune up?
1761439
I would strongly recommend a motor head tuneup kit-http://www.amazon.com/Fluval-Motor-Head-Maintenance-Tune/dp/B0085ZFDSQ/ref=sr_1_6?ie=UTF8&qid;=1393246473&sr;=8-6&keyword;s=fluval+306+parts
1761440
I had the same problem occur with mine. It turned out a piece of debris got caught in the impeller and caused the shaft to start slipping from the magnet. A replacement of the impeller system (magnet, shaft, and blade head) fixed the problem.
494068
I have not had this problem with either pump I installed. Possibly water is not staying in the line and the gaskets are getting dried out or your intake and overboard discharge are clogged and water is not flowing smoothly through the system or (if you have one) your holding tank is full so there is no place for the water to pump into...
1677108
it sounds like the water is puming out to fast for the water coming in. the pump is probably too big for your application. try reducing the outlet hose size to about 3/4" instead of the 1 1/4" it is set up for. if the float had about 8" of travel instead of 3" you would be fine. my pump works fine for me, i am happy with it.
1873093
Hi Barbara, The only place these things will rattle is in the impeller assembly, it sounds like the impeller is not correctly seated in the housing and not making correct magnetic contact with the motor, as a result your impeller isn't turning enough rpms and not drawing water up through your intake. If the water level in your filter has dropped too far you may have lost your prime. Before taking the impeller apart, make sure you manually fill your filter with water, then turn it on and see if it draws water. If it doesn't, don't hesitate to take it to your local pet store and ask them to check the impeller assembly remember, they don't want to lose your business. Good luck.
2269022
I had a similar issue. I took it apart, cleaned out the rotor and siphon tube, and it seemed to fix the problem. The flow control in the siphon tube had caught some algae and quickly plugged up the system.
221325
There is a flow regulator on top (little black nob with and arrow) try changing it s orientation until you get your desired flow...hope it helps.
197580
I have not had that problem but if you go to their website, www.fluvalaquatics.com, they have a very helpful abd responsive customer service department that will solve your problem. Tim
1584999
Not a problem with mine. It could be a clogged filter or to much pressure/flow from the supply. Replace the element and/or turn down the flow rate.
1305227
I don't know. If it is new it might be a defect. I have 2 of these units and there is a clear difference in the fan from high to low. Mine have been going strong for a year now....one of them was on my boat all winter running 24/7 and still works great. I'd either check with the manufacturer or send it back. Good luck!
1913995
The flow rate through the pump and filter will be reduced a little. Consider the strain on the motor when the filter is dirty--the tiny bit of additional strain due to smaller diameter hoses will be nothing compared to that.
1904288
I have seen mixed opinions about the water flow. I personally had this same issue. But I took the filter off the faucet then took unscrewed the filter out of its housing and made sure all the water was out of filter then did the reinstall steps like I was puting a new filter in. I then put the fu lter back on the faucet. Then very slowly turned the water on to slowly fill the filter with water. And behold I got my flow back I had before. I think there was a air pocket in the filter. Give it a try see what you think. i hope this helps let me know.
1335944
Being variable speed, it will affect the flow as the faster the rpms of the motor, the more the flow. I'm trying to figure out why he would say this. After I've lived with this for almost a year, I recently converted my pool to salt water and I do notice that the chlorine generator doesn't operate at the slower speeds, but so what? My main motivation for installing this motor was to get away from covering and winterizing the pool in the winter. I ran the motor at slow speeds all winter and had absolutely no problems with freezing. As long as you run it enough hours at high speed per day, you will generate enough chlorine to keep the pool looking great. My pool has never looked better and I am enjoying it more now than ever.
1830335
You may need to adjust the flow switch on the pump - it may be at the lowest setting and you'll need to move it up. Also make sure everything is lined up properly so that the water can flow to the top. Good luck!
2083988
I would look at the manual. The only time mine bogged down was when I was working with wet leaves. It worked for a while until the wet dirt that was on the leaves built up into mud caked inside the impeller case area. I would check that area for built up material (unplugged of course). Maybe there was wet material in there when you used it last, but after being in storage it dried up.
2095734
I found that you needed two pumps - one the air stone and one for the down current. Tried to do with just one and couldn't get enough flow. Went to Wal-Mart and got two Whisper 10-30 gallon pumps. Skimmer now works pretty good but a little finicky to adjust.
847801
I have an ancient fish tank motor (same principal) sometimes the impeller(little fan like thing that moves the water)gets clogged Carefully under running water try to flush it out. A little food/whisker whatever may be stuck. Goodluck
221324
sounds like the motor is crapping out. i used this thing for a short time and didnt like it and went back to old faithful "whisper 60s", they last forever, work great, are mostly quiet, gotta pull em apart and clean up good every once and a while but they really are the best hang on filters u can get. ive been in saltwater forever and have used EVERYTHING you can imagine, stick with whispers..