the low CA is me, im getting that in check. or it could be my tests. anywho i just read a crap load about water chemistry and i have some tricks up my sleeve im going to try on my water to balance things back out.
If its dead bring it in and I'll get you another one. YOU were the first person to pickup and first choice. Check your water parms. as you are the only one to lose it, or have it RTNing.