Need a flush?

Hi everyone!.
I don't understand how this is possible?.
I grow in soil and add some nuts to my plant, when i check the run of it said 1050, watered my plan 2 days later ans check the run of its on 1150 then 2 more days goes by and i check it again and its increasing whit only givin it water how is this possible?, can some one explain whats happening plz :wall:
Run off and the plant water uptake is increasing.

Up the amount of water by a half gallon. Run off should look like a heavy rain storm.
ty mate i will do that :).
But do you know way ppms go up more and more when i don't even fees her for couples of days?