that's an interesting, thought, actually. I myself hate WC
's and I keep having to do 20% every two weeks (fighting cyano
Anyway, just a few problems that I see.
1. If you're draining and adding at the same time, some small volume you added will be drained, so it really wouldn't be a 10% WC
....of course, you could just do 15% to be safe
2. How are you going to keep the salinity level in the water to be added constant? I guess you could refill it with well aged, aerated and brought to temp water every week or two, but then that would defeat the whole purpose of "less work"--ha
By the way, if you ever figure this out and make it work, call me, I want in on the profit sharing--this thing would sell like hot cakes and I'd be the first one buying. (don't forget to patent it)