I am using a Prizm skimmer myself. When I first installed it, I hated the noise but now I am used to it. Once you get used to how your skimmer operates, you can make the fine adjustments by opening or closing the gate. If it is open too much, your cup will fill up fast and as mine did at first, water will go everywhere. Now, I change my cup about 2 times per week. Another tip is to close the gate when you feed and add additives to your tank ie.. calcium, iron, etc. But, don't forget to open it again after about 30 min.
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