wolftickets500
Member
i am an experienced grower of many years and i recently moved into a new house and when i run water through my R.O. it comes out at 7.87 ph. so i have to add about 45-60 ml of ph down per 20 gallonsto achieve a ph of 6.0 where i like to keep it. i also suspect that it is the brand of ph down or that it might be old. i use all advanced nutrients except the ph down which is general hydroponics,also the jug is about a year old does it expire? any help would be greatly appreciated thanx alot people