thenasty1
Well-Known Member
tint pretty much hit the nail on the head
longest ive been able to go without dumping a res (rdwc, 80ish gal) is 23 days. i add back clean water and nutes as necessary, but eventually something builds up enough to throw things out of whack (or thats my theory, at least). keep in mind too that the plants are eating more of x and less of y at different stages of their development, so what they leave on their plate is going to change a bit from week to week. it would be pretty difficult to dial in your feed to where you never have to dump without lab equipment and the skills to use it
longest ive been able to go without dumping a res (rdwc, 80ish gal) is 23 days. i add back clean water and nutes as necessary, but eventually something builds up enough to throw things out of whack (or thats my theory, at least). keep in mind too that the plants are eating more of x and less of y at different stages of their development, so what they leave on their plate is going to change a bit from week to week. it would be pretty difficult to dial in your feed to where you never have to dump without lab equipment and the skills to use it