10-11-2010, 11:34 AM
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Originally Posted by Russell
I've had the same AC50 for 4 yrs and got it for free from someone who had had it for three years. I have replaced the impeller which I broke while cleaning, cost five USD. It is on a 50gal long now and works perfectly. It is quiet, it keeps the water crystal clear, the only complaint I have against AC filters is that they don't self prime. Something to note for all the AC filter owners current and future is that they filter at the same rate regardless of flow. For example the AC50 filters 100GPH whether on the highest or lowest setting. Extra flow is achieved by bypassing water around the filter. So if you have an AC filter and fish that don't like fast moving water you can turn it down without worrying about losing filtration.
I work at a pet store and people are always returning them because they don't understand how to prime them.
They are really good filters though. If you have a bad one I would take it back or contact the company.