Parzifal Posted May 6, 2018 Share Posted May 6, 2018 Good morning! i’m debating between two sump designs and would greatly appreciate the forum’s opinions and experience. a few notes about the system: -150 gal display upstairs plumbed to basement fish room frag tank -130 gallon frag tank plumbed to refugium -185 gallon refugium plumbed to mechanical filtration sump. -110 gallon mechanical sump. The debate is over which of these two designs will work best (fewest bubbles) 1) baffles at the very end of the sump. This may limit the size protein skimmer I can build, but allows for slower flow into the return. 2) baffles at the beginning of the sump. This opens up for the size protein skimmer I really want to build and creates a 50 gallon “return” chamber. Have any of you seen issues with putting the baffles this far away from the return? what would your concerns be with the second layout? Quote Link to comment Share on other sites More sharing options...
wanareef Posted May 28, 2018 Share Posted May 28, 2018 # 1 Quote Link to comment Share on other sites More sharing options...
xmas_one Posted May 28, 2018 Share Posted May 28, 2018 I would not be concerned about bubbles. Quote Link to comment Share on other sites More sharing options...
parvo99 Posted May 29, 2018 Share Posted May 29, 2018 1. Sump water volume: remember, the max water height as shown is 9”. So your actual volume is about 50gal 2. I’m assuming you use an ato? The smaller the return chamber is, the less that needs to evaporate to activate the ato. Although, with the total volume of your system it probably doesn’t make a huge difference. 3. I prefer a separate chamber for the skimmer so that the water level never changes. I like to turn off my return pump when feeding so none of the food goes into the overflows. When I had my skimmer in the return chamber, it kept overflowing when I turned off my return pump. Quote Link to comment Share on other sites More sharing options...
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