Maybe when I come back from vacation I'll try a little experiment with a sprinkler solenoid valve, and just run the RO/DI every night for about an hour, and see what that does to the tds surge.
The only thing is I like running my reservoir empty between fills, that way I know I have water that's no more than "X" days old. I.e., if you run all time at near about the same level of water in the tank, then it becomes a pool of water that isn't completely refreshed periodically, and I can see that things like bacteria and whatnot could gain a possible foothold...
Sheesh - there is no end to the pros and cons of any idea, is there??
