Help with ppm and ph

im havin problem with my ppm's rising after i ph my water. i take my plain tap that been sittn out for days which is 7.0 ph and add nutrients to desired ppm which brings ph down to 6.0 and then i ph up to 6.5 but after ph up my ppm's raise hire than desired. does anyone know why? my meters are calibrated and workin fine.

nutrients do that. I like to aerate my nutrients in water for a day or two also to allow for this. good luck!

Nutes, PH Up and PH Down will change the PPM

Yeah don't worry about small changes the adjusters make but that's why you want to put just the right ph up or down in and not play with it back and forward.

pandan said:

Yeah don't worry about small changes the adjusters make but that's why you want to put just the right ph up or down in and not play with it back and forward.

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Exactly. Distill your water for 24 to 48 hours then add your nutes and when PHing add the PH Up or PH Down very little by very little so that your not adjusting it the other way.