UPDATE:Initial Assessment of the c-220(Strictly my opinion)For those who may be looking in to this cannister filter, please keep in mind the unit is a week old. I purchased this at pet supplies plus on sale for 127. From the start I found the set up to be quiet easy, and was very excited to get my cannister filter running. The main unit seems to be constructed very well. As far as the intake tube and output nozzle....HORRIBLE! I have better plastic on my power filter! I honestly was worried I could snap or crush the nozzles. I was hoping for a spray bar when I purchased this unit, but that was my fault I should have looked into it a little more.
Next my 2nd biggest gripe. the 2 pump prime....not so much. try 10x's (more on this later)
3rd gripe. The instructions. They just need to be more informative. I had a rubber grommet that goes on one of the trays that fell off that isn't even listed in the instructions. fortunately I was able to figure out where it came from.
4th gripe. Customer service. I waited 15 min to get an answer. When I did I mention my cannister filter and she actually said wow that is everyones problem today. Kinda makes you nervous on a product. I told her about the rattling in the impeller. She went over the basics as I knew she would. I told her yes i shook it. Yes Ive restarted it. yes ive checked the impeller. Yes i have the proper head height. I was basically told to give it a few days and if I wanted I could fax or email a copy of the receipt for a new impeller. Then I told her about the prime button and she said that I have to have the unit not plugged in and no water in the cannister. The instructions state to plug it in then prime it twice. So you decide what to do. I think what drives me the most nuts is I didnt even get a sorry for your troubles.
Finally. This is a brand new unit. I should not be hearing the impeller right out of the box. It makes me nervous on how long this unit will hold up. I know that many people use these units and say they are great. Im sure they are. maybe I am just being to picky.
The motor sounds as if it will be whisper quiet(assuming the impeller ever quit rattaling.) My water clarity still isnt as crystal clear as I had hoped. ( I do weekly water changes and I am OCD about keeping it clean) But I am beginning to see improvement.
I am not ready to give up on this filter yet. I hope that as far as water clarity goes I am just being impatient. The no bypass and 4 baskets idea seems as if it will work great. I love this part of the filter and was the biggest reason I bought it.As far as the wobbling impeller...maybe a fluke. The input and output nozzles...they need to be changed..that is ridiculous. I feel the prime button needs to be reworked also. The price is great and i certainly hope this filter wont completly let me down. For now I am on the fence.
Hope this helps anyone.