Budley Doright
Well-Known Member
That PH swing is wild. I never tried distilled water but you would think it would be great. What product for PH up are you using! And perhaps up your EC a bit low, raise it to get it to stay steady or rise just very slightly. When my PH drops continuously its near the end of the res's time and a good indicator for my setup that I need to change it. But yes I didnt see the last pics and you really need to get that solved or it is going to effect yield IMO. When I first started in hydro the biggest thing to deal with was PH swings and after quite a few different products I settled on Aqua Flakes and my own sulphuric acid for PH down. I use very little up and a litre lasts like two years. My res is very stable now but I also run low pressure sprayers and no air pump, the air stones really messed with the ph as well.