tag on batter/runner

[shipwreck]

Had a game last night in which I was the BU. Batter/runner in the 3' running lane and fielder fielded the ball and made what I thought looked like a tag even though the tag was made on the foul side of the batter/runner. I called her out. Then after the play was done I went and conferred with the PU if he had seen anything different. He stated that he didn't see anything because he was watching the girl from third touch home, so I stayed with my out call. Is that proper mechanics to go to my partner after I called her out or not? My thinking later made me wonder. If I called her out, I must have seen something that made me think she was out, similiar to if I am PU and I say the batter offered at a pitch and call a strike, I don't then go to the BU and ask if she went. How should this be handled? Dave