soil runoff ph

ok so i done a little bit of reading have i got this right to get soil ph buffer ur water to 7.0 mines 7.1 so left it there water plant check ph at other side and thats 6.1 so is my soil ph 6.1 and within the tollerance allowed ?

Yep.

I used soil for a while but now I'm coco, ph doesn't really matter for soil the soil buffers it I wouldn't worry about it