First Grow: Do i check ph in run off and water/feed? If the soil run off is off, do I amend soil or adjust the water/feed level to effect soil?

If your growing in soil, checking the ec isn't so important. Ph is always important. Should be enough nutrients for the first 3 to 4 weeks if your using good soil. If ph is on the high side from the planter then water with your lowest ph for soil. Vice versa. Water, water, then feed etc and your ec levels should remain good, once you start your feed regiment.