thanks guys! i'm shocked to have gotten any responses!
jstdv8: thats just a cap. i couldnt find a wye piece of pvc so i had to use that piece, which is a wye with an additional opening b/w the split. i had to cap off that additional opening. i just ordered a tunze ato and a 1" scwd so i'll be re-doing the plumbing.
posiden: good to see you back dude! i havent been visiting the site as much. last i remember you called it quits to swf.com. either way, i can run a scwd with the mag 18. the 3/4" scwd wouldnt accomodate the flow, i dont think, but now that the 1" is out it will work. i'd like to get a mag 12 since the 18 is dialed back so far. what i was saying was that it's a shame that i cant use the 18 for a CLS. i dont wont have use for it once i switch.
i cant believe i forgot to mention this earlier: a few weeks ago there was a real bad storm in pittsburgh and my power went out for close to 72 hrs. i bought a few battery powered air pumps and luckily didnt lose anything. some of my softies started dropping branches and some mushroom polyps fell off their rocks but nothing died. i was worried about a spike in ammonia from all the aerobic bacteria that could have died but daily testing didnt reveal any cycle. the same day that power was restored, some water got dripped onto one of my power strips and tripped the GFCI i installed. i'm so glad i took the ten minutes to install it, otherwise i'd be eric b sans house.
posting pictures in a few minutes.