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Old 10/02/2020, 12:43 PM   #2
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Join Date: Sep 2009
Posts: 14,125
Originally Posted by chema View Post
Hi: I have been using the new mini BK 160 with the Red Dragon X pump for a fez months. I am happy because it is the quietest skimmer I have ever had. However, I'°m a little bit disappointed because I can not regulate it to extract more and lighter skimmate. It produces a small amount of a very dark skimmate. If I open the valve to make the bubbles rise in the collecting chamber then water begins to flow between the body and the cup.

Water height in the sump where it is located is 22 cm.

Any ideas on how to get more and lighter skimmate?
What is your fish load? Sounds like itís very light relative to the skimmer size. These skimmers are very conservatively rated and with a light load, itís tough to maintain consistent skimming. Especially if you need to run it really wet. With the lighter load, the skimmer doesnít fill the column up with the same amount of foam that a heavier load would result in and as you are seeing, youíd need to raise the break line up above the bottom of the cup which will result in some water seepage between the cup and the body due to the Miniís weighted sealing of the collection cup. While itís not an issue having that little bit of seepage as it wonít impact the skimmers performance, you can add a bit of silicone grease between the cup and body to help create a better seal. Once the cup has some skimmate in it, that should further help with the seal when running the water level above the body. That should help some but increasing your fish load will help the skimmer perform better and make it easier to tune without having to run the break line so high.

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