
whats up guys i'm running an ebb and grow 18 bucket system and the time for flushing is upon me. But I have a problem I drained the res and refilled and the ppm was still too high so i did it again and again and my ppm is still going up. How do I properly flush, whats the best thing to add to lower ppm. I was going to add advanced nutrients final phase but I dont know if that lowers the ppm or not. Any ideas or methods will be greatly appreciated. This is my forst grow with this bucket system so....I'm a little lost I dont understand why it keeps going up? Thanx