Well, this is why I posted my idea. To get you thinking ...
Mine will work for me as all I'll have to do is use a small pump to empty the big chamber and BAM big WC will happen. BUT my new sump will not be under my tank as I have a sump room and can pretty much build whatever I want.
Just thought I'd throw it out there for you as you started me off in this hobby and anything I can send your way is payback
