I don't usually do a bunch of woodworking, and chemical use is not a constant thing. I now do more fish related stuff back there than anything else. It's really just my workshop/storage area. Doing this behind the wall would leave me with a LOT of flexibility with the sump design, and probably allow a fuge as well.
Damn this is gonna get expensive.
I checked with Aqua C about their remora HOT skimmers. According to them, you need 6.5 inches of clearance from the top of the tank. I will only have 5 with the canopy in place. In addition they say add another 4 inches for cup removal, though I could use a cup with a drain to a bottle. But because of the clearance issue, this is prolly not an option.
If I want to do the behind-the-wall sump option, I need to know if my tank will be OK without a skimmer for a bit. Since my seaclone is leaking it is currently off the tank. I suppose I could try and get a new o-ring to seal it up.
I would really like to get a sump that is something like this:
http://www.melevsreef.com/acrylics/s...p_model_j.html
Or maybe this:
http://www.melevsreef.com/acrylics/s...p_model_e.html