Returned to remove leaking drum trap and install a new waste & overflow for bathtub. Started by removing old waste and overflow. Went down into crawlspace and finished removing waste & overflow along with drum trap that was attached to bathtub. Installed new waste & overflow along with a new pvc trap. Entire bathtub drain now plumbed in PVC. Noticed that toilet 90 elbow was not entirely attached to flange. We replaced 90 elbow last year. Went ahead and replaced 90 elbow and made proper repairs to toilet flange and installed new elbow. Flushed toilet several times and ran water for bathtub and no leaks were detected. 2 year warranty on waste and overflow with p trap replacement