Ph rise and fall

So on the first 3 days after nutrient change my ph goes up then day 4 stays the same then day 5-7 ph falls. I start my ec at 1.7 by day 3 ec has went up to 2.2 or higher. Every day I add a gallon of water with ph up or down whatever the day calls for.

Thank you kind sir. I also forgot to mention my plants are in flower, if that makes any difference.

MrGreyWolf79 said:

I start my ec at 1.7 by day 3 ec has went up to 2.2 or higher

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over-feeding.
try 1.2 instead