Sounds like your tap water. I know alot of peeps use tap water but the problem is yours may not work. too much chlorine or something even at 140 ppm.

Try a rez change of R/O or distilled and see how it does for you. Can't hurt.
LOC NAR on probation Reviewed by LOC NAR on probation on . General Hydro 3 part and ph??? ive been using Advanced 2 part for some time and have many people trying to convince me that the GH flora 3 part is better. So ive given it a try but it seems that the ph flux reacts differently then what I was use to using Advanced. Basicly when Im in veg the ph I set my ph at 5.6 and let it climb just as I was use to doing with AN, but when Im flowering it seems to be dropping, so Im always taking it to 6.1 and letting it descend. This is new to me cause It seemed that with AN is did the same Rating: 5