Marijuana Growing - View Single Post - Pics!!!SOS I've got yellow tips. Help a newbie out.

morrisgreenberg · #12 07-03-2009, 12:00 AM

i personally have a more elaborate method of flushing, for my systems i let the pumps run, add my fresh water source from a hose/sink, at the same time i run a pump, pumping out the water in the rez....this way i constantly check the ppms and watch them get lower, i have a drip system in a tray, lots of salt gets stuck to the clay pellets, i can run a fresh rez no nutes and the drain water would be 250ppm, mind you my tap water is 25ppm, so as i run the system and fresh water gets pumped to all plant sites, i have the other pumping out, all the while fresh water is coming in, therefore i dont flush the system with that 250ppm drain water thats been recirculating, once i get the drain water back to under 50ppm i am happy and know i did a good thoro flush, having water that strong will mess with your ph and all the rez changes in the worl wont help, i have to do this once a month and tro be honest i used flora kleen and clearex and i think i wasted my money, i believe they are great for container plants. i understand this isnt feasable for most who dont have a hose nearby and the extra pump laying around