Morcs Posted June 12, 2009 Report Share Posted June 12, 2009 My 1 month of Aquaone CF1200 is giving me some problems. Every ten minutes or so it makes a noise - like its de-pressurizing or something. Ive had it apart 3 times this week, made sure all the o-rings between baskets are sealing properly etc, removed, cleaned and checked the impeller, and the same with all the hoses. Is this normal, if not, what causes it? Quote Link to comment Share on other sites More sharing options...
dantedobe Posted June 12, 2009 Report Share Posted June 12, 2009 No that is not normal. I run 5 aqua one cannisters and they are quiet and smooth running. I did have a problem with one that I bought. It went back and got fixed with no problems so I would suggest you get it looked at. Quote Link to comment Share on other sites More sharing options...
VinsonMassif Posted June 12, 2009 Report Share Posted June 12, 2009 It sounds like air in the canister body. Gently shake it left-right front-back and that should get all the air bubbles out. More air will build up, but it should only be a small amount. I have six CF1200's I think they are a good filter. Check your intake valve. Sometimes you will have a loose connection, allowing air in. Make sure the screw parts are done up tight. I have found that the self-prime mechanism wears out and sometimes leaks too. Your lfs will stock replacement O-rings for these parts if need be. Quote Link to comment Share on other sites More sharing options...
Adrienne Posted June 12, 2009 Report Share Posted June 12, 2009 It sounds like air in the canister body. Gently shake it left-right front-back and that should get all the air bubbles out. More air will build up, but it should only be a small amount. I have six CF1200's I think they are a good filter. Check your intake valve. Sometimes you will have a loose connection, allowing air in. Make sure the screw parts are done up tight. I have found that the self-prime mechanism wears out and sometimes leaks too. Your lfs will stock replacement O-rings for these parts if need be. as said above, a couple of mine are doing it at the moment and need replacement o rings. Quote Link to comment Share on other sites More sharing options...
livingart Posted June 12, 2009 Report Share Posted June 12, 2009 vaseline can be an "o" rings friend Quote Link to comment Share on other sites More sharing options...
bronze-dragon Posted June 12, 2009 Report Share Posted June 12, 2009 dirty livingart :bounce: Quote Link to comment Share on other sites More sharing options...
VinsonMassif Posted June 12, 2009 Report Share Posted June 12, 2009 dirty livingart :bounce: LMAO! Quote Link to comment Share on other sites More sharing options...
Ira Posted June 12, 2009 Report Share Posted June 12, 2009 My 1 month of Aquaone CF1200 is giving me some problems. Every ten minutes or so it makes a noise - like its de-pressurizing or something. Ive had it apart 3 times this week, made sure all the o-rings between baskets are sealing properly etc, removed, cleaned and checked the impeller, and the same with all the hoses. Is this normal, if not, what causes it? Depressurising? What's the sound like? Gurgling? Does it blow bubbles out of the spray bar when it does it? If it is, could be sucking air in somewhere. The connections between the elbow joints on the intake would be my first guess. This is assuming you've cleared the obvious like an airstone near the intake so it's sucking in bubbles. Quote Link to comment Share on other sites More sharing options...
Morcs Posted June 12, 2009 Author Report Share Posted June 12, 2009 Cheers guys will check the intake part of the system tomorrow Quote Link to comment Share on other sites More sharing options...
kiwiplymouth Posted June 12, 2009 Report Share Posted June 12, 2009 My 1 month of Aquaone CF1200 is giving me some problems. Every ten minutes or so it makes a noise - like its de-pressurizing or something. Ive had it apart 3 times this week, made sure all the o-rings between baskets are sealing properly etc, removed, cleaned and checked the impeller, and the same with all the hoses. Is this normal, if not, what causes it? It could be an air lock. Try lying in it on its side while its still running with the inlet and outlet facing the ground then very slowly (over a minute or two) bring it back up to its normal position. This can purge the air from the system. Quote Link to comment Share on other sites More sharing options...
Morcs Posted June 12, 2009 Author Report Share Posted June 12, 2009 It could be an air lock. Try lying in it on its side while its still running with the inlet and outlet facing the ground then very slowly (over a minute or two) bring it back up to its normal position. This can purge the air from the system. Will give this a go later. cheers. I tried everything else, checked and tightened all hoses and locks on the intake side of things to no avail. rocking the unit around causes the noise to be made instantly. My output rate is still good though. Quote Link to comment Share on other sites More sharing options...
Morcs Posted June 13, 2009 Author Report Share Posted June 13, 2009 mmm so everything seems fine. Have checked and tightened all connections. Have unassembled and reassembled unit, have knocked it around, lay on its side etc and hasnt fixed it. Anyway, Apart from the noise being slightly annoying, it surely cant be bad? putting oxygen into the water I mean. Quote Link to comment Share on other sites More sharing options...
VinsonMassif Posted June 13, 2009 Report Share Posted June 13, 2009 If it is air then the bubbles are causing cavitation of the impeller. The impeller breaks up the air into tiny bubbles and vibrates slightly. If there is a lot of air then this is bad for the impeller. But they are only ~$12 to replace. Quote Link to comment Share on other sites More sharing options...
livingart Posted June 13, 2009 Report Share Posted June 13, 2009 sometimes too tight a fitting can cause a small leak on o rings, i run all aqua ones and have no problems o rings must be free from any dust etc or no small tears or nicks on them are all pipes 100% secure, air in system usually comes on the inflow side Quote Link to comment Share on other sites More sharing options...
purplecatfish Posted June 13, 2009 Report Share Posted June 13, 2009 vaseline can be an "o" rings friend NO! don't use vaseline on O-rings. The petroleum jelly will melt the rubber slowly over time. You need to use silicone grease. Quote Link to comment Share on other sites More sharing options...
livingart Posted June 13, 2009 Report Share Posted June 13, 2009 thank you purple catfish, you are correct sorry it was meant as a joke which i should have quantified :oops: Quote Link to comment Share on other sites More sharing options...
Morcs Posted June 14, 2009 Author Report Share Posted June 14, 2009 Seems I found the problem - the o-ring that seals between the top basket and powerhead - when I assemble the unit, I used to have the oring on the head, but by fitting it to the basket, then putting the head on worked. Cheers for the help guys. I have a whisper quiet filter now Quote Link to comment Share on other sites More sharing options...
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