Do you know the PPM of your run off? My understanding is when you flush soil, you strip it of all the nutrients in the soil.. this will increase the pH of the soil. it's the fert in soil that causes pH to be what it is. if you wash out more fert, your pH will stay higher than you want. worry more about fert content. now you should let the soil dry out because it's not good to keep it wet for a long period. chances are your leaves will go yellow because of the lower fert content now. Raise your PPM back to what it needs to be. And don't drink the Bloom-aid. He's gonna kill way to many plants this month.. 👊