Tong,
Thanks for the compliment and description of your water change system. I am very intrigued by the constant water change system, I know some folks take into account the skimmer waste as part of the continous water change. On a large skimmer like the one I will have I think could get a gallon a day easily (skimming wet).
You probably don't remember, but I met you a couple of years ago and your tank insired me to build my "dream tank". If you have any other advice on equipment, build, etc. please let me know. If you're ever in millbrae please swing on by.
Best,
Jim