Tap water pH to 5.5 no nutes still rises when u put in the system . Do the same but put nutes in same thing start pH at 5 within hrs it's at 6 and it holds at 7.1 what the pH of my tap water is it does go over 7.1 in less than 24 hrs all temps are gd system temp 69-70f room temp 73f rh 52% EC...