On June 13, 2024, two (2) employees, 29 and 33, working as laborers for a dairy support service, were filling a Diller Model #STAL7250 Manure Tanker (Serial# LD9TA33ZXMC804135). The rubber pipe sock came off the Jamesway manure filler pipe. Employee #1 entered the tanker to retrieve the pipe sock and was overcome. Employee #2 entered the tanker to render aid to Employee #1 and was also overcome.