DWC pH

[Thomasfilion]

I just tossed out my second two week old plants for the second time. I can't keep the pH in range. I'll get it down to 5.5 and four hours later it's back up to 7.3. or so. Im using general hydroponics trio along with bioguard. I have a white bucket I sprayed with silver paint, would light getting in do this to the pH?

[dontknownuttin]

I never noticed this with any of my DWC grows let us know what you find out!

[Zomb]

What kind of water are you using? Are you adding nutes before or after you balance pH?

[Thomasfilion]

Im using tap water that sat out 2 days and the pH is fine until I add the nutes

[Zomb]

pH water after adding nutes. How many gallons is your reservoir?