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Unread 03/07/2018, 05:59 PM   #11
Dan_P
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Join Date: Aug 2014
Posts: 1,432
Quote:
Originally Posted by Frogmanx82 View Post
It could be interesting to test the skimmer in a static environment like a bucket with a known volume and phosphate level and then check the phosphate level in the water over time.
Like it.

I did something like this with a GAC column. May try it with a skimmer.

Quote:
.1% per hour sure seems like a lot of skimmate. Do many people run systems that wet?
I don’t know the answer to the preferences but wetter skimate results in removing more material per hour. Unless water conservation is an important factor or time to empty the collection bucket is limited, it seems like skimmers should be run as wet as practical. 0.1% for my 187 liter would be about 200 mL an hour or 4.8 liters a day. On the other hand people do 1% per day water changes which for my system would be about 2 liters per day. I typically try to keep the skimmer air flow adjusted to produce about 2 liters per day. The amount of scum collecting on the skimmer walls seems much reduced.


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